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import streamlit as st
st.set_option('deprecation.showPyplotGlobalUse', False)
#st.markdown()
st.title("Document Title")
st.header("Article header")
st.subheader("Article subheader")
st.code("y = mx + c")
st.latex("\ int a y^2 \ , dy")
st.text("This is a chair!")
st.markdown('Staying hydrated is **_very_ cool**.')
students = ["Amelia Kami", "Antoinne Mark", "Peter Zen", "North Kim"]
marks = [82, 76, 96, 68]
import pandas as pd
df = pd.DataFrame()
df["Student Name"] = students
df["Marks"] = marks
#save to dataframe
df.to_csv("students.csv", index = False)
#display
st.dataframe(df)
#Static table
st.table(df)
#Metrics
st.metric("KPI", 56, 3)
#Json
st.json(df.to_dict())
#Code
#average of a list
code = '''def cal_average(numbers):
sum_number = 0
for t in numbers:
sum_number = sum_number + t
average = sum_number / len(numbers)
return average'''
st.code(code, language='python')
#progress bar
import streamlit as st
import time
# Sample Progress bar
#bar_p = st.progress(0)
#for percentage_complete in range(100):
#time.sleep(0.1)
#bar_p.progress(percentage_complete + 1)
#with st.spinner('Please wait...'):
#time.sleep(5)
#st.write('Complete!')
#Displaying an image using Streamlit
from PIL import Image
image = Image.open('media/ann-savchenko-H0h_89iFsWs-unsplash.jpg')
#st.image(image, caption='Sunset grass backgrounds')
#plotly
import plotly.express as px
# This dataframe has 244 rows, but 4 unique entries for the `day` variable
df = px.data.tips()
figx = px.pie(df, values='tip', names='day', title='Tips per day')
# Plot!
st.plotly_chart(figx, use_container_width=True)
#Altair
import altair as alt
import streamlit as st
import numpy as np
df = pd.DataFrame(
np.random.randn(300, 4),
columns=['a', 'b', 'c', 'd'])
chrt = alt.Chart(df).mark_circle().encode(
x='a', y='b', size='c', color='c', tooltip=['a', 'b', 'c', 'd'])
st.altair_chart(chrt, use_container_width=True)
#Matplotlib
import matplotlib.pyplot as plt
import numpy as np
arr = np.random.normal(1, 1, size=1000)
fig, ax = plt.subplots()
ax.hist(arr, bins=30)
plt.grid()
st.pyplot(fig)
#Interactive widgets
st.button("Click here")
#st.download_button("Download audio", file)
selected = st.checkbox("Accept terms")
choice = st.radio("Select one", ["Apples", "Oranges"])
option = st.selectbox(
'How would you like to receive your package?',
('By air', 'By sea', 'By rail'))
st.write('You selected:', option)
import datetime
day = st.date_input(
"When is your birthday?",
datetime.date(2022, 7, 6))
st.write('Your birthday is:', day)
color = st.color_picker('Choose A Color', '#00FFAA')
st.write('The selected color is', color)
@st.cache
def fetch_data():
df = pd.read_csv("students.csv")
return df
#data = fetch_data()
#Visualization
import matplotlib.pyplot as plt
import numpy as np
#Matplotlib
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_axes([0,0,1,1])
animals = ["Zebras", "Elephants", "Rhinos", "Leopards"]
number = [65, 72, 77, 59]
ax.bar(animals, number)
fig = plt.show()
st.pyplot(fig)
#Seaborn
import seaborn as sns
fig = plt.figure()
ax = sns.barplot(x = animals, y = number)
fig = plt.show()
st.pyplot(fig)
#Altair
#define data
df = pd.DataFrame()
df["Animals"] = animals
df["Number"] = number
#create chart
chrt = alt.Chart(df, title="Ploting using Altair in Streamlit").mark_bar().encode(
x='Animals',
y='Number'
)
#render with Streamlit
st.altair_chart(chrt, use_container_width=True)
#Plotly
#define data
df = pd.DataFrame()
df["Animals"] = animals
df["Number"] = number
#create plot
fig1 = px.bar(df, x='Animals', y='Number', title="Ploting using Plotly in Streamlit")
# Plot!
st.plotly_chart(fig1, use_container_width=True)
#data
df = pd.DataFrame()
df["Animals"] = animals
df["Number"] = number
#visualization
st.vega_lite_chart(df, {
'mark': {'type': 'bar', 'tooltip': True},
'encoding': {
'x': {'field': 'Animals', 'type': 'nominal'},
'y': {'field': 'Number', 'type': 'quantitative'},
},
}, use_container_width=True)
#Maps
import pandas as pd
states = pd.read_html('https://developers.google.com/public-data/docs/canonical/states_csv')[0]
states.columns = ['state', 'lat', 'lon', 'name']
states = states.drop(['state', 'name'], axis = 1)
st.map(states)
#Components
from st_aggrid import AgGrid
AgGrid(df)
#Statefulnness
import streamlit as st
st.title('Streamlit Counter Example')
count = 0
add = st.button('Addition')
if add:
count += 1
st.write('Count = ', count)
import streamlit as st
st.title('Counter Session State')
if 'count' not in st.session_state:
st.session_state.count = 0
increment = st.button('Add')
if increment:
st.session_state.count += 1
st.write('Count = ', st.session_state.count)
#Layout
col1, col2 = st.columns(2)
with col1:
st.altair_chart(chrt)
with col2:
st.plotly_chart(fig1, use_container_width=True)
with st.beta_container():
st.plotly_chart(figx, use_container_width=True)
#Add side widget
def your_widget(key):
st.subheader('Hi! Welcome')
return st.button(key + "Step")
# Displayed in the main area
clicked = your_widget("First")
# Shown within an expander
your_expander = st.expander("Expand", expanded=True)
with your_expander:
clicked = your_widget("Second")
# Shown in the st.sidebar!
with st.sidebar:
clicked = your_widget("Last")
#Session State
# Initialization
if 'key' not in st.session_state:
st.session_state['key'] = 'value'
# Session State also supports attribute based syntax
if 'key' not in st.session_state:
st.session_state.key = 'value'
st.session_state.key = 'value x' # New Attribute API
st.session_state['key'] = 'value x' # New Dictionary like API
st.write(st.session_state)
#Uploading files
import streamlit as st
#upload single file
file = st.file_uploader("Please select a file to upload")
if file is not None:
#Can be used wherever a "file-like" object is accepted:
df= pd.read_csv(file)
st.dataframe(df)
#Multiple files
#adding a file uploader to accept multiple CSV file
uploaded_files = st.file_uploader("Please select a CSV file", accept_multiple_files=True)
for file in uploaded_files:
df = pd.read_csv(file)
st.write("File uploaded:", file.name)
st.dataframe(df)
#Uploading and Processing
#upload single file
from PIL import Image
from PIL import ImageEnhance
def load_image(image):
img = Image.open(image)
return img
file = st.file_uploader("Please select image to upload and process")
if file is not None:
image = Image.open(file)
fig = plt.figure()
st.subheader("Original Image")
plt.imshow(image)
st.pyplot(fig)
fig = plt.figure()
contrast = ImageEnhance.Contrast(image).enhance(12)
plt.imshow(contrast)
st.subheader("Preprocessed Image")
st.pyplot(fig)
#Image classification
import keras
from PIL import Image, ImageOps
import numpy as np
import streamlit as st
import streamlit as st
from transformers import pipeline
'''Hugging Face'''
import streamlit as st
from transformers import pipeline
if __name__ == "__main__":
# Define the title of the and its description
st.title("Answering questions using NLP through Streamlit interface")
st.write("Pose questions, get answers")
# Load file
raw_text = st.text_area(label="Enter a text here")
if raw_text != None and raw_text != '':
# Display text
with st.expander("Show question"):
st.write(raw_text)
# Conduct question answering using the pipeline
question_answerer = pipeline('question-answering')
answer = ''
question = st.text_input('Ask a question')
if question != '' and raw_text != '':
answer = question_answerer({
'question': question,
'context': raw_text
})
st.write(answer)
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