Repository: tenajima/nullpom (language: python)

Issue:
Drop index column
![image](https://user-images.githubusercontent.com/19265782/110742381-9822c000-8279-11eb-81c6-1517d5230a06.png)

Hide lightgbm log
![image](https://user-images.githubusercontent.com/19265782/110742321-7fb2a580-8279-11eb-914e-717ee9e8783b.png)



Discussion / hints:

Fix patch:
diff --git a/nullpom/main.py b/nullpom/main.py
index 7bfcebb..fd9084d 100644
--- a/nullpom/main.py
+++ b/nullpom/main.py
@@ -1,26 +1,89 @@
+import pickle
+import math
+import os
+from datetime import datetime
+
 import lightgbm as lgb
+import matplotlib.pyplot as plt
 import numpy as np
 import pandas as pd
 
 
-def run_null_importance(params, n_runs=100, *, X_train, X_valid, y_train, y_valid):
+def run_null_importance(
+    params, output_dir="", n_runs=100, *, X_train, X_valid, y_train, y_valid
+):
     experiment = Experiment(
         params,
-        n_runs=100,
+        n_runs=n_runs,
         X_train=X_train,
         X_valid=X_valid,
         y_train=y_train,
         y_valid=y_valid,
     )
-    return experiment.execute()
+    result = experiment.execute()
+    if output_dir == "":
+        output_dir = datetime.now().strftime(r"%Y%m%d_%H%M%S")
+    result.save(output_dir)
+    return result
 
 
-class Result:
+class NullImportanceResult:
     def __init__(self, actual_importance, actual_model, null_importance):
         self.actual_importance = actual_importance
         self.actual_model = actual_model
         self.null_importance = null_importance
 
+    def save(self, output_dir):
+        output_dir = os.path.join("./", output_dir)
+        os.makedirs(output_dir)
+        with open(os.path.join(output_dir, "actual_model.pkl"), "wb") as f:
+            pickle.dump(self.actual_model, f)
+
+        self.actual_importance.to_pickle(
+            os.path.join(output_dir, "actual_importance.pkl")
+        )
+        self.null_importance.to_pickle(os.path.join(output_dir, "null_importance.pkl"))
+
+        fig = self.plot_importance()
+        fig.savefig(os.path.join(output_dir, "distribution_of_importance.png"))
+
+    @classmethod
+    def load(cls, input_dir):
+        actual_model = pd.read_pickle(os.path.join(input_dir, "actual_model.pkl"))
+        actual_importance = pd.read_pickle(
+            os.path.join(input_dir, "actual_importance.pkl")
+        )
+        null_importance = pd.read_pickle(os.path.join(input_dir, "null_importance.pkl"))
+        return cls(actual_importance, actual_model, null_importance)
+
+    def plot_importance(self):
+        features = self.actual_importance["feature"].unique().tolist()
+        num_features = len(features)
+        AX_COUNT_PER_ROW = 4
+        col_width = AX_COUNT_PER_ROW * 8
+        row_width = np.maximum(1, (num_features // AX_COUNT_PER_ROW)) * 4
+        fig = plt.figure(figsize=(col_width, row_width))
+        num_of_rows = math.ceil(num_features / AX_COUNT_PER_ROW)
+        for i, feature in enumerate(features):
+            ax = fig.add_subplot(num_of_rows, AX_COUNT_PER_ROW, i + 1)
+            hist_info = ax.hist(
+                self.null_importance.query(f"feature == '{feature}'")["importance"],
+                label="Null importance",
+            )
+            ax.vlines(
+                x=self.actual_importance.loc[i, "importance"],
+                ymin=0,
+                ymax=np.max(hist_info[0]),
+                color="r",
+                linewidth=5,
+                label="Real Target",
+            )
+            ax.legend(loc="upper right")
+            ax.set_title(f"Importance of {feature.upper()}", fontweight="bold")
+            ax.set_xlabel(f"Null Importance Distribution for {feature.upper()}")
+            ax.set_ylabel("Importance")
+        return fig
+
 
 class Experiment:
     def __init__(self, params, n_runs=100, *, X_train, X_valid, y_train, y_valid):
@@ -41,16 +104,22 @@ def get_feature_importance(self, *, shuffle=False):
             y_valid = np.random.permutation(self.y_valid)
             dtrain = lgb.Dataset(self.X_train, y_train)
             dvalid = lgb.Dataset(self.X_valid, y_valid)
+            verbose_eval = False
         else:
             dtrain = lgb.Dataset(self.X_train, self.y_train)
             dvalid = lgb.Dataset(self.X_valid, self.y_valid)
+            verbose_eval = 1000
 
-        model = lgb.train(self.params, dtrain, valid_sets=[dtrain, dvalid])
+        model = lgb.train(
+            self.params, dtrain, valid_sets=[dtrain, dvalid], verbose_eval=verbose_eval
+        )
 
         importance = pd.DataFrame()
         importance["feature"] = model.feature_name()
         importance["importance"] = model.feature_importance("gain")
-        importance = importance.sort_values("importance", ascending=False).reset_index()
+        importance = importance.sort_values("importance", ascending=False).reset_index(
+            drop=True
+        )
         return importance, model
 
     def execute(self):
@@ -64,4 +133,4 @@ def execute(self):
             tmp_importance, _ = self.get_feature_importance(shuffle=True)
             null_importance = pd.concat([null_importance, tmp_importance])
 
-        return Result(actual_importance, actual_model, null_importance)
+        return NullImportanceResult(actual_importance, actual_model, null_importance)
diff --git a/poetry.lock b/poetry.lock
index 355df68..5e39ff5 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,3 +1,22 @@
+[[package]]
+name = "anyio"
+version = "2.2.0"
+description = "High level compatibility layer for multiple asynchronous event loop implementations"
+category = "dev"
+optional = false
+python-versions = ">=3.6.2"
+
+[package.dependencies]
+idna = ">=2.8"
+sniffio = ">=1.1"
+typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
+
+[package.extras]
+curio = ["curio (>=1.4)"]
+doc = ["sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
+test = ["coverage[toml] (>=4.5)", "hypothesis (>=4.0)", "pytest (>=6.0)", "trustme", "uvloop (<0.15)", "uvloop (>=0.15)"]
+trio = ["trio (>=0.16)"]
+
 [[package]]
 name = "appdirs"
 version = "1.4.4"
@@ -6,6 +25,39 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "appnope"
+version = "0.1.2"
+description = "Disable App Nap on macOS >= 10.9"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "argon2-cffi"
+version = "20.1.0"
+description = "The secure Argon2 password hashing algorithm."
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+cffi = ">=1.0.0"
+six = "*"
+
+[package.extras]
+dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pytest", "sphinx", "wheel", "pre-commit"]
+docs = ["sphinx"]
+tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pytest"]
+
+[[package]]
+name = "async-generator"
+version = "1.10"
+description = "Async generators and context managers for Python 3.5+"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
 [[package]]
 name = "atomicwrites"
 version = "1.4.0"
@@ -28,6 +80,25 @@ docs = ["furo", "sphinx", "zope.interface"]
 tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
 
+[[package]]
+name = "babel"
+version = "2.9.0"
+description = "Internationalization utilities"
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+
+[package.dependencies]
+pytz = ">=2015.7"
+
+[[package]]
+name = "backcall"
+version = "0.2.0"
+description = "Specifications for callback functions passed in to an API"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "black"
 version = "20.8b1"
@@ -50,6 +121,30 @@ typing-extensions = ">=3.7.4"
 colorama = ["colorama (>=0.4.3)"]
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
 
+[[package]]
+name = "bleach"
+version = "3.3.0"
+description = "An easy safelist-based HTML-sanitizing tool."
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[package.dependencies]
+packaging = "*"
+six = ">=1.9.0"
+webencodings = "*"
+
+[[package]]
+name = "cffi"
+version = "1.14.5"
+description = "Foreign Function Interface for Python calling C code."
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+pycparser = "*"
+
 [[package]]
 name = "click"
 version = "7.1.2"
@@ -66,6 +161,49 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
+[[package]]
+name = "cycler"
+version = "0.10.0"
+description = "Composable style cycles"
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+six = "*"
+
+[[package]]
+name = "decorator"
+version = "4.4.2"
+description = "Decorators for Humans"
+category = "dev"
+optional = false
+python-versions = ">=2.6, !=3.0.*, !=3.1.*"
+
+[[package]]
+name = "defusedxml"
+version = "0.7.1"
+description = "XML bomb protection for Python stdlib modules"
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[[package]]
+name = "entrypoints"
+version = "0.3"
+description = "Discover and load entry points from installed packages."
+category = "dev"
+optional = false
+python-versions = ">=2.7"
+
+[[package]]
+name = "idna"
+version = "3.1"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "dev"
+optional = false
+python-versions = ">=3.4"
+
 [[package]]
 name = "importlib-metadata"
 version = "3.7.2"
@@ -82,6 +220,92 @@ zipp = ">=0.5"
 docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
 testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "pytest-enabler", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
 
+[[package]]
+name = "ipykernel"
+version = "5.5.0"
+description = "IPython Kernel for Jupyter"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[package.dependencies]
+appnope = {version = "*", markers = "platform_system == \"Darwin\""}
+ipython = ">=5.0.0"
+jupyter-client = "*"
+tornado = ">=4.2"
+traitlets = ">=4.1.0"
+
+[package.extras]
+test = ["pytest (!=5.3.4)", "pytest-cov", "flaky", "nose", "jedi (<=0.17.2)"]
+
+[[package]]
+name = "ipython"
+version = "7.21.0"
+description = "IPython: Productive Interactive Computing"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+appnope = {version = "*", markers = "sys_platform == \"darwin\""}
+backcall = "*"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+decorator = "*"
+jedi = ">=0.16"
+pexpect = {version = ">4.3", markers = "sys_platform != \"win32\""}
+pickleshare = "*"
+prompt-toolkit = ">=2.0.0,<3.0.0 || >3.0.0,<3.0.1 || >3.0.1,<3.1.0"
+pygments = "*"
+traitlets = ">=4.2"
+
+[package.extras]
+all = ["Sphinx (>=1.3)", "ipykernel", "ipyparallel", "ipywidgets", "nbconvert", "nbformat", "nose (>=0.10.1)", "notebook", "numpy (>=1.14)", "pygments", "qtconsole", "requests", "testpath"]
+doc = ["Sphinx (>=1.3)"]
+kernel = ["ipykernel"]
+nbconvert = ["nbconvert"]
+nbformat = ["nbformat"]
+notebook = ["notebook", "ipywidgets"]
+parallel = ["ipyparallel"]
+qtconsole = ["qtconsole"]
+test = ["nose (>=0.10.1)", "requests", "testpath", "pygments", "nbformat", "ipykernel", "numpy (>=1.14)"]
+
+[[package]]
+name = "ipython-genutils"
+version = "0.2.0"
+description = "Vestigial utilities from IPython"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "jedi"
+version = "0.18.0"
+description = "An autocompletion tool for Python that can be used for text editors."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+parso = ">=0.8.0,<0.9.0"
+
+[package.extras]
+qa = ["flake8 (==3.8.3)", "mypy (==0.782)"]
+testing = ["Django (<3.1)", "colorama", "docopt", "pytest (<6.0.0)"]
+
+[[package]]
+name = "jinja2"
+version = "2.11.3"
+description = "A very fast and expressive template engine."
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[package.dependencies]
+MarkupSafe = ">=0.23"
+
+[package.extras]
+i18n = ["Babel (>=0.8)"]
+
 [[package]]
 name = "joblib"
 version = "1.0.1"
@@ -90,6 +314,169 @@ category = "main"
 optional = false
 python-versions = ">=3.6"
 
+[[package]]
+name = "json5"
+version = "0.9.5"
+description = "A Python implementation of the JSON5 data format."
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.extras]
+dev = ["hypothesis"]
+
+[[package]]
+name = "jsonschema"
+version = "3.2.0"
+description = "An implementation of JSON Schema validation for Python"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+attrs = ">=17.4.0"
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
+pyrsistent = ">=0.14.0"
+six = ">=1.11.0"
+
+[package.extras]
+format = ["idna", "jsonpointer (>1.13)", "rfc3987", "strict-rfc3339", "webcolors"]
+format_nongpl = ["idna", "jsonpointer (>1.13)", "webcolors", "rfc3986-validator (>0.1.0)", "rfc3339-validator"]
+
+[[package]]
+name = "jupyter-client"
+version = "6.1.11"
+description = "Jupyter protocol implementation and client libraries"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[package.dependencies]
+jupyter-core = ">=4.6.0"
+python-dateutil = ">=2.1"
+pyzmq = ">=13"
+tornado = ">=4.1"
+traitlets = "*"
+
+[package.extras]
+doc = ["sphinx (>=1.3.6)", "sphinx-rtd-theme", "sphinxcontrib-github-alt"]
+test = ["jedi (<=0.17.2)", "ipykernel", "ipython", "mock", "pytest", "pytest-asyncio", "async-generator", "pytest-timeout"]
+
+[[package]]
+name = "jupyter-core"
+version = "4.7.1"
+description = "Jupyter core package. A base package on which Jupyter projects rely."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+pywin32 = {version = ">=1.0", markers = "sys_platform == \"win32\""}
+traitlets = "*"
+
+[[package]]
+name = "jupyter-packaging"
+version = "0.7.12"
+description = "Jupyter Packaging Utilities"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+packaging = "*"
+
+[package.extras]
+test = ["pytest"]
+
+[[package]]
+name = "jupyter-server"
+version = "1.4.1"
+description = "The backend—i.e. core services, APIs, and REST endpoints—to Jupyter web applications."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+anyio = ">=2.0.2"
+ipython-genutils = "*"
+jinja2 = "*"
+jupyter-client = ">=6.1.1"
+jupyter-core = ">=4.4.0"
+nbconvert = "*"
+nbformat = "*"
+prometheus-client = "*"
+pywin32 = {version = ">=1.0", markers = "sys_platform == \"win32\""}
+pyzmq = ">=17"
+Send2Trash = "*"
+terminado = ">=0.8.3"
+tornado = ">=6.1.0"
+traitlets = ">=4.2.1"
+
+[package.extras]
+test = ["coverage", "requests", "pytest", "pytest-cov", "pytest-tornasync", "pytest-console-scripts", "ipykernel"]
+
+[[package]]
+name = "jupyterlab"
+version = "3.0.10"
+description = "The JupyterLab server extension."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+ipython = "*"
+jinja2 = ">=2.10"
+jupyter-core = "*"
+jupyter-packaging = ">=0.7.3,<0.8.0"
+jupyter-server = ">=1.4,<2.0"
+jupyterlab-server = ">=2.3,<3.0"
+nbclassic = ">=0.2,<1.0"
+packaging = "*"
+tornado = ">=6.1.0"
+
+[package.extras]
+docs = ["jsx-lexer", "recommonmark", "sphinx", "sphinx-rtd-theme", "sphinx-copybutton"]
+test = ["pytest (>=6.0)", "pytest-cov", "pytest-console-scripts", "pytest-check-links", "jupyterlab-server[test] (>=2.0,<3.0)", "requests", "wheel", "virtualenv", "nose-exclude"]
+
+[[package]]
+name = "jupyterlab-pygments"
+version = "0.1.2"
+description = "Pygments theme using JupyterLab CSS variables"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+pygments = ">=2.4.1,<3"
+
+[[package]]
+name = "jupyterlab-server"
+version = "2.3.0"
+description = "JupyterLab Server"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+babel = "*"
+jinja2 = ">=2.10"
+json5 = "*"
+jsonschema = ">=3.0.1"
+jupyter-server = ">=1.4,<2.0"
+packaging = "*"
+requests = "*"
+
+[package.extras]
+test = ["codecov", "ipykernel", "pytest (>=5.3.2)", "pytest-cov", "jupyter-server", "pytest-console-scripts", "strict-rfc3339", "wheel"]
+
+[[package]]
+name = "kiwisolver"
+version = "1.3.1"
+description = "A fast implementation of the Cassowary constraint solver"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "lightgbm"
 version = "3.1.1"
@@ -103,6 +490,38 @@ numpy = "*"
 scikit-learn = "!=0.22.0"
 scipy = "*"
 
+[[package]]
+name = "markupsafe"
+version = "1.1.1"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "dev"
+optional = false
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
+
+[[package]]
+name = "matplotlib"
+version = "3.3.4"
+description = "Python plotting package"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+cycler = ">=0.10"
+kiwisolver = ">=1.0.1"
+numpy = ">=1.15"
+pillow = ">=6.2.0"
+pyparsing = ">=2.0.3,<2.0.4 || >2.0.4,<2.1.2 || >2.1.2,<2.1.6 || >2.1.6"
+python-dateutil = ">=2.1"
+
+[[package]]
+name = "mistune"
+version = "0.8.4"
+description = "The fastest markdown parser in pure Python"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "more-itertools"
 version = "8.7.0"
@@ -119,6 +538,126 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "nbclassic"
+version = "0.2.6"
+description = "Jupyter Notebook as a Jupyter Server Extension."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+jupyter-server = ">=1.1,<2.0"
+notebook = "<7"
+
+[package.extras]
+test = ["pytest", "pytest-tornasync", "pytest-console-scripts"]
+
+[[package]]
+name = "nbclient"
+version = "0.5.3"
+description = "A client library for executing notebooks. Formerly nbconvert's ExecutePreprocessor."
+category = "dev"
+optional = false
+python-versions = ">=3.6.1"
+
+[package.dependencies]
+async-generator = "*"
+jupyter-client = ">=6.1.5"
+nbformat = ">=5.0"
+nest-asyncio = "*"
+traitlets = ">=4.2"
+
+[package.extras]
+dev = ["codecov", "coverage", "ipython", "ipykernel", "ipywidgets", "pytest (>=4.1)", "pytest-cov (>=2.6.1)", "check-manifest", "flake8", "mypy", "tox", "bumpversion", "xmltodict", "pip (>=18.1)", "wheel (>=0.31.0)", "setuptools (>=38.6.0)", "twine (>=1.11.0)", "black"]
+sphinx = ["Sphinx (>=1.7)", "sphinx-book-theme", "mock", "moto", "myst-parser"]
+test = ["codecov", "coverage", "ipython", "ipykernel", "ipywidgets", "pytest (>=4.1)", "pytest-cov (>=2.6.1)", "check-manifest", "flake8", "mypy", "tox", "bumpversion", "xmltodict", "pip (>=18.1)", "wheel (>=0.31.0)", "setuptools (>=38.6.0)", "twine (>=1.11.0)", "black"]
+
+[[package]]
+name = "nbconvert"
+version = "6.0.7"
+description = "Converting Jupyter Notebooks"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+bleach = "*"
+defusedxml = "*"
+entrypoints = ">=0.2.2"
+jinja2 = ">=2.4"
+jupyter-core = "*"
+jupyterlab-pygments = "*"
+mistune = ">=0.8.1,<2"
+nbclient = ">=0.5.0,<0.6.0"
+nbformat = ">=4.4"
+pandocfilters = ">=1.4.1"
+pygments = ">=2.4.1"
+testpath = "*"
+traitlets = ">=4.2"
+
+[package.extras]
+all = ["pytest", "pytest-cov", "pytest-dependency", "ipykernel", "ipywidgets (>=7)", "pyppeteer (==0.2.2)", "tornado (>=4.0)", "sphinx (>=1.5.1)", "sphinx-rtd-theme", "nbsphinx (>=0.2.12)", "ipython"]
+docs = ["sphinx (>=1.5.1)", "sphinx-rtd-theme", "nbsphinx (>=0.2.12)", "ipython"]
+serve = ["tornado (>=4.0)"]
+test = ["pytest", "pytest-cov", "pytest-dependency", "ipykernel", "ipywidgets (>=7)", "pyppeteer (==0.2.2)"]
+webpdf = ["pyppeteer (==0.2.2)"]
+
+[[package]]
+name = "nbformat"
+version = "5.1.2"
+description = "The Jupyter Notebook format"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[package.dependencies]
+ipython-genutils = "*"
+jsonschema = ">=2.4,<2.5.0 || >2.5.0"
+jupyter-core = "*"
+traitlets = ">=4.1"
+
+[package.extras]
+fast = ["fastjsonschema"]
+test = ["check-manifest", "fastjsonschema", "testpath", "pytest", "pytest-cov"]
+
+[[package]]
+name = "nest-asyncio"
+version = "1.5.1"
+description = "Patch asyncio to allow nested event loops"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[[package]]
+name = "notebook"
+version = "6.2.0"
+description = "A web-based notebook environment for interactive computing"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[package.dependencies]
+argon2-cffi = "*"
+ipykernel = "*"
+ipython-genutils = "*"
+jinja2 = "*"
+jupyter-client = ">=5.3.4"
+jupyter-core = ">=4.6.1"
+nbconvert = "*"
+nbformat = "*"
+prometheus-client = "*"
+pyzmq = ">=17"
+Send2Trash = ">=1.5.0"
+terminado = ">=0.8.3"
+tornado = ">=6.1"
+traitlets = ">=4.2.1"
+
+[package.extras]
+docs = ["sphinx", "nbsphinx", "sphinxcontrib-github-alt", "sphinx-rtd-theme"]
+json-logging = ["json-logging"]
+test = ["pytest", "coverage", "requests", "nbval", "selenium", "pytest-cov", "requests-unixsocket"]
+
 [[package]]
 name = "numpy"
 version = "1.20.1"
@@ -154,6 +693,26 @@ pytz = ">=2017.3"
 [package.extras]
 test = ["pytest (>=5.0.1)", "pytest-xdist", "hypothesis (>=3.58)"]
 
+[[package]]
+name = "pandocfilters"
+version = "1.4.3"
+description = "Utilities for writing pandoc filters in python"
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+
+[[package]]
+name = "parso"
+version = "0.8.1"
+description = "A Python Parser"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.extras]
+qa = ["flake8 (==3.8.3)", "mypy (==0.782)"]
+testing = ["docopt", "pytest (<6.0.0)"]
+
 [[package]]
 name = "pathspec"
 version = "0.8.1"
@@ -162,6 +721,33 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
+[[package]]
+name = "pexpect"
+version = "4.8.0"
+description = "Pexpect allows easy control of interactive console applications."
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.dependencies]
+ptyprocess = ">=0.5"
+
+[[package]]
+name = "pickleshare"
+version = "0.7.5"
+description = "Tiny 'shelve'-like database with concurrency support"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "pillow"
+version = "8.1.2"
+description = "Python Imaging Library (Fork)"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "pluggy"
 version = "0.13.1"
@@ -176,6 +762,36 @@ importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 [package.extras]
 dev = ["pre-commit", "tox"]
 
+[[package]]
+name = "prometheus-client"
+version = "0.9.0"
+description = "Python client for the Prometheus monitoring system."
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.extras]
+twisted = ["twisted"]
+
+[[package]]
+name = "prompt-toolkit"
+version = "3.0.16"
+description = "Library for building powerful interactive command lines in Python"
+category = "dev"
+optional = false
+python-versions = ">=3.6.1"
+
+[package.dependencies]
+wcwidth = "*"
+
+[[package]]
+name = "ptyprocess"
+version = "0.7.0"
+description = "Run a subprocess in a pseudo terminal"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "py"
 version = "1.10.0"
@@ -184,14 +800,38 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
+[[package]]
+name = "pycparser"
+version = "2.20"
+description = "C parser in Python"
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+
+[[package]]
+name = "pygments"
+version = "2.8.1"
+description = "Pygments is a syntax highlighting package written in Python."
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
 [[package]]
 name = "pyparsing"
 version = "2.4.7"
 description = "Python parsing module"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "pyrsistent"
+version = "0.17.3"
+description = "Persistent/Functional/Immutable data structures"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
 [[package]]
 name = "pytest"
 version = "5.4.3"
@@ -234,6 +874,34 @@ category = "main"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "pywin32"
+version = "300"
+description = "Python for Window Extensions"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "pywinpty"
+version = "0.5.7"
+description = "Python bindings for the winpty library"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "pyzmq"
+version = "22.0.3"
+description = "Python bindings for 0MQ"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+cffi = {version = "*", markers = "implementation_name == \"pypy\""}
+py = {version = "*", markers = "implementation_name == \"pypy\""}
+
 [[package]]
 name = "regex"
 version = "2020.11.13"
@@ -242,6 +910,18 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "requests"
+version = "2.15.1"
+description = "Python HTTP for Humans."
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.extras]
+security = ["cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
+
 [[package]]
 name = "scikit-learn"
 version = "0.24.1"
@@ -273,6 +953,14 @@ python-versions = ">=3.7"
 [package.dependencies]
 numpy = ">=1.16.5"
 
+[[package]]
+name = "send2trash"
+version = "1.5.0"
+description = "Send file to trash natively under Mac OS X, Windows and Linux."
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "six"
 version = "1.15.0"
@@ -281,6 +969,38 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "sniffio"
+version = "1.2.0"
+description = "Sniff out which async library your code is running under"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[[package]]
+name = "terminado"
+version = "0.9.2"
+description = "Tornado websocket backend for the Xterm.js Javascript terminal emulator library."
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+ptyprocess = {version = "*", markers = "os_name != \"nt\""}
+pywinpty = {version = ">=0.5", markers = "os_name == \"nt\""}
+tornado = ">=4"
+
+[[package]]
+name = "testpath"
+version = "0.4.4"
+description = "Test utilities for code working with files and commands"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[package.extras]
+test = ["pathlib2"]
+
 [[package]]
 name = "threadpoolctl"
 version = "2.1.0"
@@ -297,6 +1017,28 @@ category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "tornado"
+version = "6.1"
+description = "Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed."
+category = "dev"
+optional = false
+python-versions = ">= 3.5"
+
+[[package]]
+name = "traitlets"
+version = "5.0.5"
+description = "Traitlets Python configuration system"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+ipython-genutils = "*"
+
+[package.extras]
+test = ["pytest"]
+
 [[package]]
 name = "typed-ast"
 version = "1.4.2"
@@ -321,6 +1063,14 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "webencodings"
+version = "0.5.1"
+description = "Character encoding aliases for legacy web content"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "zipp"
 version = "3.4.1"
@@ -336,13 +1086,45 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pyt
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.1"
-content-hash = "92530d005ec90dc08c8e86d4a001f775b3f8235927e2bd9e6ae5baf04fcbc781"
+content-hash = "42adba8ddd3f3403aa5ac917448aea464b4a467c947638d5847895aace90ae66"
 
 [metadata.files]
+anyio = [
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+    {file = "anyio-2.2.0.tar.gz", hash = "sha256:4a41c5b3a65ed92e469d51b6fba3779301850ea2e352afcf9e36c46f21ee14a9"},
+]
 appdirs = [
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 ]
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+    {file = "appnope-0.1.2.tar.gz", hash = "sha256:dd83cd4b5b460958838f6eb3000c660b1f9caf2a5b1de4264e941512f603258a"},
+]
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+    {file = "argon2_cffi-20.1.0-cp39-cp39-win32.whl", hash = "sha256:e2db6e85c057c16d0bd3b4d2b04f270a7467c147381e8fd73cbbe5bc719832be"},
+    {file = "argon2_cffi-20.1.0-cp39-cp39-win_amd64.whl", hash = "sha256:8a84934bd818e14a17943de8099d41160da4a336bcc699bb4c394bbb9b94bd32"},
+]
+async-generator = [
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+    {file = "async_generator-1.10.tar.gz", hash = "sha256:6ebb3d106c12920aaae42ccb6f787ef5eefdcdd166ea3d628fa8476abe712144"},
+]
 atomicwrites = [
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@@ -351,9 +1133,60 @@ attrs = [
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 ]
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+]
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     {file = "black-20.8b1.tar.gz", hash = "sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea"},
 ]
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+    {file = "pyzmq-22.0.3-pp37-pypy37_pp73-macosx_10_9_x86_64.whl", hash = "sha256:da7d4d4c778c86b60949d17531e60c54ed3726878de8a7f8a6d6e7f8cc8c3205"},
+    {file = "pyzmq-22.0.3-pp37-pypy37_pp73-manylinux2010_x86_64.whl", hash = "sha256:13465c1ff969cab328bc92f7015ce3843f6e35f8871ad79d236e4fbc85dbe4cb"},
+    {file = "pyzmq-22.0.3-pp37-pypy37_pp73-win32.whl", hash = "sha256:279cc9b51db48bec2db146f38e336049ac5a59e5f12fb3a8ad864e238c1c62e3"},
+    {file = "pyzmq-22.0.3.tar.gz", hash = "sha256:f7f63ce127980d40f3e6a5fdb87abf17ce1a7c2bd8bf2c7560e1bbce8ab1f92d"},
+]
 regex = [
     {file = "regex-2020.11.13-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:8b882a78c320478b12ff024e81dc7d43c1462aa4a3341c754ee65d857a521f85"},
     {file = "regex-2020.11.13-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:a63f1a07932c9686d2d416fb295ec2c01ab246e89b4d58e5fa468089cab44b70"},
@@ -503,6 +1667,10 @@ regex = [
     {file = "regex-2020.11.13-cp39-cp39-win_amd64.whl", hash = "sha256:a15f64ae3a027b64496a71ab1f722355e570c3fac5ba2801cafce846bf5af01d"},
     {file = "regex-2020.11.13.tar.gz", hash = "sha256:83d6b356e116ca119db8e7c6fc2983289d87b27b3fac238cfe5dca529d884562"},
 ]
+requests = [
+    {file = "requests-2.15.1-py2.py3-none-any.whl", hash = "sha256:ff753b2196cd18b1bbeddc9dcd5c864056599f7a7d9a4fb5677e723efa2b7fb9"},
+    {file = "requests-2.15.1.tar.gz", hash = "sha256:e5659b9315a0610505e050bb7190bf6fa2ccee1ac295f2b760ef9d8a03ebbb2e"},
+]
 scikit-learn = [
     {file = "scikit-learn-0.24.1.tar.gz", hash = "sha256:a0334a1802e64d656022c3bfab56a73fbd6bf4b1298343f3688af2151810bbdf"},
     {file = "scikit_learn-0.24.1-cp36-cp36m-macosx_10_13_x86_64.whl", hash = "sha256:9bed8a1ef133c8e2f13966a542cb8125eac7f4b67dcd234197c827ba9c7dd3e0"},
@@ -555,10 +1723,26 @@ scipy = [
     {file = "scipy-1.6.1-cp39-cp39-win_amd64.whl", hash = "sha256:a5193a098ae9f29af283dcf0041f762601faf2e595c0db1da929875b7570353f"},
     {file = "scipy-1.6.1.tar.gz", hash = "sha256:c4fceb864890b6168e79b0e714c585dbe2fd4222768ee90bc1aa0f8218691b11"},
 ]
+send2trash = [
+    {file = "Send2Trash-1.5.0-py3-none-any.whl", hash = "sha256:f1691922577b6fa12821234aeb57599d887c4900b9ca537948d2dac34aea888b"},
+    {file = "Send2Trash-1.5.0.tar.gz", hash = "sha256:60001cc07d707fe247c94f74ca6ac0d3255aabcb930529690897ca2a39db28b2"},
+]
 six = [
     {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
     {file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
 ]
+sniffio = [
+    {file = "sniffio-1.2.0-py3-none-any.whl", hash = "sha256:471b71698eac1c2112a40ce2752bb2f4a4814c22a54a3eed3676bc0f5ca9f663"},
+    {file = "sniffio-1.2.0.tar.gz", hash = "sha256:c4666eecec1d3f50960c6bdf61ab7bc350648da6c126e3cf6898d8cd4ddcd3de"},
+]
+terminado = [
+    {file = "terminado-0.9.2-py3-none-any.whl", hash = "sha256:23a053e06b22711269563c8bb96b36a036a86be8b5353e85e804f89b84aaa23f"},
+    {file = "terminado-0.9.2.tar.gz", hash = "sha256:89e6d94b19e4bc9dce0ffd908dfaf55cc78a9bf735934e915a4a96f65ac9704c"},
+]
+testpath = [
+    {file = "testpath-0.4.4-py2.py3-none-any.whl", hash = "sha256:bfcf9411ef4bf3db7579063e0546938b1edda3d69f4e1fb8756991f5951f85d4"},
+    {file = "testpath-0.4.4.tar.gz", hash = "sha256:60e0a3261c149755f4399a1fff7d37523179a70fdc3abdf78de9fc2604aeec7e"},
+]
 threadpoolctl = [
     {file = "threadpoolctl-2.1.0-py3-none-any.whl", hash = "sha256:38b74ca20ff3bb42caca8b00055111d74159ee95c4370882bbff2b93d24da725"},
     {file = "threadpoolctl-2.1.0.tar.gz", hash = "sha256:ddc57c96a38beb63db45d6c159b5ab07b6bced12c45a1f07b2b92f272aebfa6b"},
@@ -567,6 +1751,53 @@ toml = [
     {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
     {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
 ]
+tornado = [
+    {file = "tornado-6.1-cp35-cp35m-macosx_10_9_x86_64.whl", hash = "sha256:d371e811d6b156d82aa5f9a4e08b58debf97c302a35714f6f45e35139c332e32"},
+    {file = "tornado-6.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:0d321a39c36e5f2c4ff12b4ed58d41390460f798422c4504e09eb5678e09998c"},
+    {file = "tornado-6.1-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:9de9e5188a782be6b1ce866e8a51bc76a0fbaa0e16613823fc38e4fc2556ad05"},
+    {file = "tornado-6.1-cp35-cp35m-manylinux2010_i686.whl", hash = "sha256:61b32d06ae8a036a6607805e6720ef00a3c98207038444ba7fd3d169cd998910"},
+    {file = "tornado-6.1-cp35-cp35m-manylinux2010_x86_64.whl", hash = "sha256:3e63498f680547ed24d2c71e6497f24bca791aca2fe116dbc2bd0ac7f191691b"},
+    {file = "tornado-6.1-cp35-cp35m-manylinux2014_aarch64.whl", hash = "sha256:6c77c9937962577a6a76917845d06af6ab9197702a42e1346d8ae2e76b5e3675"},
+    {file = "tornado-6.1-cp35-cp35m-win32.whl", hash = "sha256:6286efab1ed6e74b7028327365cf7346b1d777d63ab30e21a0f4d5b275fc17d5"},
+    {file = "tornado-6.1-cp35-cp35m-win_amd64.whl", hash = "sha256:fa2ba70284fa42c2a5ecb35e322e68823288a4251f9ba9cc77be04ae15eada68"},
+    {file = "tornado-6.1-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:0a00ff4561e2929a2c37ce706cb8233b7907e0cdc22eab98888aca5dd3775feb"},
+    {file = "tornado-6.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:748290bf9112b581c525e6e6d3820621ff020ed95af6f17fedef416b27ed564c"},
+    {file = "tornado-6.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:e385b637ac3acaae8022e7e47dfa7b83d3620e432e3ecb9a3f7f58f150e50921"},
+    {file = "tornado-6.1-cp36-cp36m-manylinux2010_i686.whl", hash = "sha256:25ad220258349a12ae87ede08a7b04aca51237721f63b1808d39bdb4b2164558"},
+    {file = "tornado-6.1-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:65d98939f1a2e74b58839f8c4dab3b6b3c1ce84972ae712be02845e65391ac7c"},
+    {file = "tornado-6.1-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:e519d64089b0876c7b467274468709dadf11e41d65f63bba207e04217f47c085"},
+    {file = "tornado-6.1-cp36-cp36m-win32.whl", hash = "sha256:b87936fd2c317b6ee08a5741ea06b9d11a6074ef4cc42e031bc6403f82a32575"},
+    {file = "tornado-6.1-cp36-cp36m-win_amd64.whl", hash = "sha256:cc0ee35043162abbf717b7df924597ade8e5395e7b66d18270116f8745ceb795"},
+    {file = "tornado-6.1-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:7250a3fa399f08ec9cb3f7b1b987955d17e044f1ade821b32e5f435130250d7f"},
+    {file = "tornado-6.1-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:ed3ad863b1b40cd1d4bd21e7498329ccaece75db5a5bf58cd3c9f130843e7102"},
+    {file = "tornado-6.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:dcef026f608f678c118779cd6591c8af6e9b4155c44e0d1bc0c87c036fb8c8c4"},
+    {file = "tornado-6.1-cp37-cp37m-manylinux2010_i686.whl", hash = "sha256:70dec29e8ac485dbf57481baee40781c63e381bebea080991893cd297742b8fd"},
+    {file = "tornado-6.1-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:d3f7594930c423fd9f5d1a76bee85a2c36fd8b4b16921cae7e965f22575e9c01"},
+    {file = "tornado-6.1-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:3447475585bae2e77ecb832fc0300c3695516a47d46cefa0528181a34c5b9d3d"},
+    {file = "tornado-6.1-cp37-cp37m-win32.whl", hash = "sha256:e7229e60ac41a1202444497ddde70a48d33909e484f96eb0da9baf8dc68541df"},
+    {file = "tornado-6.1-cp37-cp37m-win_amd64.whl", hash = "sha256:cb5ec8eead331e3bb4ce8066cf06d2dfef1bfb1b2a73082dfe8a161301b76e37"},
+    {file = "tornado-6.1-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:20241b3cb4f425e971cb0a8e4ffc9b0a861530ae3c52f2b0434e6c1b57e9fd95"},
+    {file = "tornado-6.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:c77da1263aa361938476f04c4b6c8916001b90b2c2fdd92d8d535e1af48fba5a"},
+    {file = "tornado-6.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:fba85b6cd9c39be262fcd23865652920832b61583de2a2ca907dbd8e8a8c81e5"},
+    {file = "tornado-6.1-cp38-cp38-manylinux2010_i686.whl", hash = "sha256:1e8225a1070cd8eec59a996c43229fe8f95689cb16e552d130b9793cb570a288"},
+    {file = "tornado-6.1-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:d14d30e7f46a0476efb0deb5b61343b1526f73ebb5ed84f23dc794bdb88f9d9f"},
+    {file = "tornado-6.1-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:8f959b26f2634a091bb42241c3ed8d3cedb506e7c27b8dd5c7b9f745318ddbb6"},
+    {file = "tornado-6.1-cp38-cp38-win32.whl", hash = "sha256:34ca2dac9e4d7afb0bed4677512e36a52f09caa6fded70b4e3e1c89dbd92c326"},
+    {file = "tornado-6.1-cp38-cp38-win_amd64.whl", hash = "sha256:6196a5c39286cc37c024cd78834fb9345e464525d8991c21e908cc046d1cc02c"},
+    {file = "tornado-6.1-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:f0ba29bafd8e7e22920567ce0d232c26d4d47c8b5cf4ed7b562b5db39fa199c5"},
+    {file = "tornado-6.1-cp39-cp39-manylinux1_i686.whl", hash = "sha256:33892118b165401f291070100d6d09359ca74addda679b60390b09f8ef325ffe"},
+    {file = "tornado-6.1-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:7da13da6f985aab7f6f28debab00c67ff9cbacd588e8477034c0652ac141feea"},
+    {file = "tornado-6.1-cp39-cp39-manylinux2010_i686.whl", hash = "sha256:e0791ac58d91ac58f694d8d2957884df8e4e2f6687cdf367ef7eb7497f79eaa2"},
+    {file = "tornado-6.1-cp39-cp39-manylinux2010_x86_64.whl", hash = "sha256:66324e4e1beede9ac79e60f88de548da58b1f8ab4b2f1354d8375774f997e6c0"},
+    {file = "tornado-6.1-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:a48900ecea1cbb71b8c71c620dee15b62f85f7c14189bdeee54966fbd9a0c5bd"},
+    {file = "tornado-6.1-cp39-cp39-win32.whl", hash = "sha256:d3d20ea5782ba63ed13bc2b8c291a053c8d807a8fa927d941bd718468f7b950c"},
+    {file = "tornado-6.1-cp39-cp39-win_amd64.whl", hash = "sha256:548430be2740e327b3fe0201abe471f314741efcb0067ec4f2d7dcfb4825f3e4"},
+    {file = "tornado-6.1.tar.gz", hash = "sha256:33c6e81d7bd55b468d2e793517c909b139960b6c790a60b7991b9b6b76fb9791"},
+]
+traitlets = [
+    {file = "traitlets-5.0.5-py3-none-any.whl", hash = "sha256:69ff3f9d5351f31a7ad80443c2674b7099df13cc41fc5fa6e2f6d3b0330b0426"},
+    {file = "traitlets-5.0.5.tar.gz", hash = "sha256:178f4ce988f69189f7e523337a3e11d91c786ded9360174a3d9ca83e79bc5396"},
+]
 typed-ast = [
     {file = "typed_ast-1.4.2-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:7703620125e4fb79b64aa52427ec192822e9f45d37d4b6625ab37ef403e1df70"},
     {file = "typed_ast-1.4.2-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:c9aadc4924d4b5799112837b226160428524a9a45f830e0d0f184b19e4090487"},
@@ -608,6 +1839,10 @@ wcwidth = [
     {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
     {file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
 ]
+webencodings = [
+    {file = "webencodings-0.5.1-py2.py3-none-any.whl", hash = "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78"},
+    {file = "webencodings-0.5.1.tar.gz", hash = "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"},
+]
 zipp = [
     {file = "zipp-3.4.1-py3-none-any.whl", hash = "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"},
     {file = "zipp-3.4.1.tar.gz", hash = "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76"},
diff --git a/pyproject.toml b/pyproject.toml
index a5f6f8f..5a5c706 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,10 +9,12 @@ python = "^3.7.1"
 scikit-learn = "^0.24.1"
 pandas = "^1.2.3"
 lightgbm = "^3.1.1"
+matplotlib = "^3.3.4"
 
 [tool.poetry.dev-dependencies]
 pytest = "^5.2"
 black = "^20.8b1"
+jupyterlab = "^3.0.10"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]


Test patch:
diff --git a/tests/test_nullpom.py b/tests/test_nullpom.py
index 4a6a638..e333a3d 100644
--- a/tests/test_nullpom.py
+++ b/tests/test_nullpom.py
@@ -1,5 +1,9 @@
+import os
+import shutil
+
 import pandas as pd
-from nullpom.main import Experiment, run_null_importance
+import pytest
+from nullpom.main import Experiment, NullImportanceResult, run_null_importance
 from sklearn.datasets import load_breast_cancer
 from sklearn.model_selection import train_test_split
 
@@ -10,6 +14,22 @@
     X, y, random_state=42, test_size=0.3
 )
 
+TMP_RESULT_DIR = "./tmp"
+
+
+@pytest.fixture
+def result():
+    result = run_null_importance(
+        {"objective": "binary", "seed": 42},
+        output_dir=TMP_RESULT_DIR,
+        X_train=X_train,
+        X_valid=X_valid,
+        y_train=y_train,
+        y_valid=y_valid,
+    )
+    yield result
+    shutil.rmtree(TMP_RESULT_DIR)
+
 
 class TestExperiment:
     def test_init(self):
@@ -34,12 +54,12 @@ def test_execute(self):
         assert True
 
 
-def test_run_null_importance():
-    run_null_importance(
-        {"objective": "binary"},
-        X_train=X_train,
-        X_valid=X_valid,
-        y_train=y_train,
-        y_valid=y_valid,
-    )
-    assert True
+def test_run_null_importance(result):
+    assert os.path.exists(os.path.join(TMP_RESULT_DIR, "actual_model.pkl"))
+    assert os.path.exists(os.path.join(TMP_RESULT_DIR, "actual_importance.pkl"))
+    assert os.path.exists(os.path.join(TMP_RESULT_DIR, "null_importance.pkl"))
+
+    result_loaded = NullImportanceResult.load(TMP_RESULT_DIR)
+    assert hasattr(result_loaded, "actual_model")
+    assert hasattr(result_loaded, "actual_importance")
+    assert hasattr(result_loaded, "null_importance")