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April 3, 2020 06:07
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# -*- coding: utf-8 -*- | |
# Copyright 2018-2019 Streamlit Inc. | |
# | |
# 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. | |
"""An example of showing geographic data.""" | |
import streamlit as st | |
import pandas as pd | |
import numpy as np | |
import altair as alt | |
import pydeck as pdk | |
import datetime | |
DATE = "date" | |
DATA_URL = ( | |
"https://raw.githubusercontent.com/nytimes/covid-19-data/master/us-counties.csv" | |
) | |
ZIPDB = ( | |
"https://raw.githubusercontent.com/btskinner/spatial/master/data/county_centers.csv" | |
) | |
st.title("Covid Growth in the US") | |
st.markdown( | |
""" | |
This Streamlit app shows Covid growth in the US. Use the slider | |
to pick a specific day and look at how the charts change. | |
This is heavily indebted to: | |
https://github.com/streamlit/demo-uber-nyc-pickups/blob/master/app.py | |
https://github.com/nytimes/covid-19-data | |
https://github.com/btskinner/spatial | |
""") | |
@st.cache(persist=True) | |
def load_data(): | |
df = pd.read_csv(DATA_URL) | |
#lowercase = lambda x: str(x).lower() | |
#data.rename(lowercase, axis="columns", inplace=True) | |
#df = df.fillna(0) | |
df = df[df['fips'].notnull()] | |
df['fips']=df['fips'].astype(int) | |
df = df[df['date'].notna()] | |
df['date'] = pd.to_datetime(df['date']) | |
return df | |
@st.cache(persist=True) | |
def load_zips(): | |
data = pd.read_csv(ZIPDB) | |
#lowercase = lambda x: str(x).lower() | |
#data.rename(lowercase, axis="columns", inplace=True) | |
data=data.rename(columns = {'pclon10':'lon'}) | |
data=data.rename(columns = {'pclat10':'lat'}) | |
data = data[data['lat'].notnull()] | |
data = data[data['lon'].notnull()] | |
data.drop(['clon00', 'clat00', 'clon10', 'clat10','pclon00', 'pclat00'], axis=1, inplace=True) | |
return data | |
data = load_data() | |
zips = load_zips() | |
datamerged = pd.merge(data, zips, on='fips', how='left') | |
st.write(datamerged) | |
#datamerged.drop(['clon00', 'clat00', 'clon10', 'clat10','pclon00', 'pclat00'], axis=1, inplace=True) | |
#hour = st.slider("Hour to look at", 0, 23) | |
#data = data[data[DATE_TIME].dt.date == date] | |
#today = datetime.date.today() | |
#tomorrow = today + datetime.timedelta(days=1) | |
#start_date = st.date_input('Start date', today) | |
#end_date = st.date_input('End date', tomorrow) | |
#if start_date < end_date: | |
# st.success('Start date: `%s`\n\nEnd date:`%s`' % (start_date, end_date)) | |
#else: | |
# st.error('Error: End date must fall after start date.') | |
#st.subheader("Geo data between %i:00 and %i:00" % (hour, (hour + 1) % 24)) | |
midpoint = (np.average(datamerged["lat"]), np.average(datamerged["lon"])) | |
st.write(pdk.Deck( | |
map_style="mapbox://styles/mapbox/light-v9", | |
initial_view_state={ | |
"latitude": midpoint[0], | |
"longitude": midpoint[1], | |
# "latitude": 39.8283, | |
# "longitude": 98.5795, | |
"zoom": 4, | |
"pitch": 50, | |
}, | |
layers=[ | |
pdk.Layer( | |
"HexagonLayer", | |
data=datamerged, | |
get_position=["lon", "lat"], | |
radius=300, | |
elevation_scale=50, | |
elevation_range=[0, 3000], | |
pickable=True, | |
extruded=True, | |
), | |
], | |
)) | |
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