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| # Copyright (c) Streamlit Inc. (2018-2022) Snowflake Inc. (2022) | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| import time | |
| import numpy as np | |
| import streamlit as st | |
| from streamlit.hello.utils import show_code | |
| def plotting_demo(): | |
| progress_bar = st.sidebar.progress(0) | |
| status_text = st.sidebar.empty() | |
| last_rows = np.random.randn(1, 1) | |
| chart = st.line_chart(last_rows) | |
| for i in range(1, 101): | |
| new_rows = last_rows[-1, :] + np.random.randn(5, 1).cumsum(axis=0) | |
| status_text.text("%i%% Complete" % i) | |
| chart.add_rows(new_rows) | |
| progress_bar.progress(i) | |
| last_rows = new_rows | |
| time.sleep(0.05) | |
| progress_bar.empty() | |
| # Streamlit widgets automatically run the script from top to bottom. Since | |
| # this button is not connected to any other logic, it just causes a plain | |
| # rerun. | |
| st.button("Re-run") | |
| st.set_page_config(page_title="Plotting Demo", page_icon="📈") | |
| st.markdown("# Plotting Demo") | |
| st.sidebar.header("Plotting Demo") | |
| st.write( | |
| """This demo illustrates a combination of plotting and animation with | |
| Streamlit. We're generating a bunch of random numbers in a loop for around | |
| 5 seconds. Enjoy!""" | |
| ) | |
| plotting_demo() | |
| show_code(plotting_demo) | |