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app.py
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import dash
from dash.dependencies import Input, Output, State, Event
import dash_core_components as dcc
import dash_html_components as html
import plotly.plotly as py
from plotly import graph_objs as go
from plotly.graph_objs import *
from flask import Flask
import pandas as pd
import numpy as np
import os
server = Flask('my app')
server.secret_key = os.environ.get('secret_key', 'secret')
app = dash.Dash('UberApp', server=server, url_base_pathname='/dash/gallery/uber-rides/', csrf_protect=False)
if 'DYNO' in os.environ:
app.scripts.append_script({
'external_url': 'https://cdn.rawgit.com/chriddyp/ca0d8f02a1659981a0ea7f013a378bbd/raw/e79f3f789517deec58f41251f7dbb6bee72c44ab/plotly_ga.js'
})
mapbox_access_token = 'pk.eyJ1IjoiYWxpc2hvYmVpcmkiLCJhIjoiY2ozYnM3YTUxMDAxeDMzcGNjbmZyMmplZiJ9.ZjmQ0C2MNs1AzEBC_Syadg'
def initialize():
df = pd.read_csv('https://www.dropbox.com/s/vxe7623o7eqbe6n/output.csv?dl=1')
df.drop("Unnamed: 0", 1, inplace=True)
df["Date/Time"] = pd.to_datetime(df["Date/Time"], format="%Y-%m-%d %H:%M:%S")
df.index = df["Date/Time"]
df.drop("Date/Time", 1, inplace=True)
df.drop("Base", 1, inplace=True)
totalList = []
for month in df.groupby(df.index.month):
dailyList = []
for day in month[1].groupby(month[1].index.day):
dailyList.append(day[1])
totalList.append(dailyList)
return np.array(totalList)
app.layout = html.Div([
html.Div([
html.Div([
html.P(id='total-rides', className="totalRides"),
html.P(id='total-rides-selection', className="totalRideSelection"),
html.P(id='date-value', className="dateValue"),
dcc.Dropdown(
id='my-dropdown',
options=[
{'label': 'April 2014', 'value': 'Apr'},
{'label': 'May 2014', 'value': 'May'},
{'label': 'June 2014', 'value': 'June'},
{'label': 'July 2014', 'value': 'July'},
{'label': 'Aug 2014', 'value': 'Aug'},
{'label': 'Sept 2014', 'value': 'Sept'}
],
value="Apr",
placeholder="Please choose a month",
className="month-picker"
),
html.Div([
html.Div([
html.H2("Dash - Uber Data App", style={'font-family': 'Dosis'}),
html.Img(src="https://cdn.rawgit.com/plotly/design-assets/master/logo/dash/images/dash-logo-by-plotly-stripe.png?token=ARkbw71c0vCS8Jnau4bHOoc9HRF_lZAtks5ZUrwDwA%3D%3D",
style={
'height': '100px',
'float': 'right',
'position': 'relative',
'bottom': '145px',
'left': '5px'
},
),
]),
html.P("Select different days using the dropdown and the slider\
below or by selecting different time frames on the\
histogram", className="explanationParagraph twelve columns"),
dcc.Graph(id='map-graph'),
dcc.Dropdown(
id='bar-selector',
options=[
{'label': '0:00', 'value': '0'},
{'label': '1:00', 'value': '1'},
{'label': '2:00', 'value': '2'},
{'label': '3:00', 'value': '3'},
{'label': '4:00', 'value': '4'},
{'label': '5:00', 'value': '5'},
{'label': '6:00', 'value': '6'},
{'label': '7:00', 'value': '7'},
{'label': '8:00', 'value': '8'},
{'label': '9:00', 'value': '9'},
{'label': '10:00', 'value': '10'},
{'label': '11:00', 'value': '11'},
{'label': '12:00', 'value': '12'},
{'label': '13:00', 'value': '13'},
{'label': '14:00', 'value': '14'},
{'label': '15:00', 'value': '15'},
{'label': '16:00', 'value': '16'},
{'label': '17:00', 'value': '17'},
{'label': '18:00', 'value': '18'},
{'label': '19:00', 'value': '19'},
{'label': '20:00', 'value': '20'},
{'label': '21:00', 'value': '21'},
{'label': '22:00', 'value': '22'},
{'label': '23:00', 'value': '23'}
],
multi=True,
placeholder="Select certain hours using \
the box-select/lasso tool or \
using the dropdown menu",
className="bars"
),
dcc.Graph(id="histogram"),
html.P("", id="popupAnnotation", className="popupAnnotation"),
], className="graph twelve coluns"),
], style={'margin': 'auto auto'}),
dcc.Slider(
id="my-slider",
min=1,
step=1,
value=1
),
dcc.Markdown("Source: [FiveThirtyEight](https://github.com/fivethirtyeight/uber-tlc-foil-response/tree/master/uber-trip-data)",
className="source"),
dcc.Checklist(
id="mapControls",
options=[
{'label': 'Lock Camera', 'value': 'lock'}
],
values=[''],
labelClassName="mapControls",
inputStyle={"z-index": "3"}
),
], className="graphSlider ten columns offset-by-one"),
], style={"padding-top": "20px"})
def getValue(value):
val = {
'Apr': 30,
'May': 31,
'June': 30,
'July': 31,
'Aug': 31,
'Sept': 30
}[value]
return val
def getIndex(value):
if(value==None):
return 0
val = {
'Apr': 0,
'May': 1,
'June': 2,
'July': 3,
'Aug': 4,
'Sept': 5
}[value]
return val
def getClickIndex(value):
if(value==None):
return 0
return value['points'][0]['x']
@app.callback(Output("my-slider", "marks"),
[Input("my-dropdown", "value")])
def update_slider_ticks(value):
marks = {}
for i in range(1, getValue(value)+1, 1):
if(i is 1 or i is getValue(value)):
marks.update({i: '{} {}'.format(value, i)})
else:
marks.update({i: '{}'.format(i)})
return marks
@app.callback(Output("my-slider", "max"),
[Input("my-dropdown", "value")])
def update_slider_max(value):
return getValue(value)
@app.callback(Output("bar-selector", "value"),
[Input("histogram", "selectedData")])
def update_bar_selector(value):
holder = []
if(value is None or len(value) is 0):
return holder
for x in value['points']:
holder.append(str(int(x['x'])))
return holder
@app.callback(Output("total-rides", "children"),
[Input("my-dropdown", "value"), Input('my-slider', 'value')])
def update_total_rides(value, slider_value):
return ("Total # of rides: {:,d}"
.format(len(totalList[getIndex(value)][slider_value-1])))
@app.callback(Output("total-rides-selection", "children"),
[Input("my-dropdown", "value"), Input('my-slider', 'value'),
Input('bar-selector', 'value')])
def update_total_rides_selection(value, slider_value, selection):
if(selection is None or len(selection) is 0):
return ""
totalInSelction = 0
for x in selection:
totalInSelction += len(totalList[getIndex(value)]
[slider_value-1]
[totalList[getIndex(value)]
[slider_value-1].index.hour == int(x)])
return ("Total rides in selection: {:,d}"
.format(totalInSelction))
@app.callback(Output("date-value", "children"),
[Input("my-dropdown", "value"), Input('my-slider', 'value'),
Input("bar-selector", "value")])
def update_date(value, slider_value, selection):
holder = []
if(value is None or selection is None or len(selection) is 24
or len(selection) is 0):
return (value, " ", slider_value, " - showing: All")
for x in selection:
holder.append(int(x))
holder.sort()
if(holder[len(holder)-1]-holder[0]+2 == len(holder)+1 and len(holder) > 2):
return (value, " ", slider_value, " - showing hour(s): ",
holder[0], "-", holder[len(holder)-1])
x = ""
for h in holder:
if(holder.index(h) == (len(holder)-1)):
x += str(h)
else:
x += str(h) + ", "
return (value, " ", slider_value, " - showing hour(s): ", x)
@app.callback(Output("histogram", "selectedData"),
[Input("my-dropdown", "value")])
def clear_selection(value):
if(value is None or len(value) is 0):
return None
@app.callback(Output("popupAnnotation", "children"),
[Input("bar-selector", "value")])
def clear_selection(value):
if(value is None or len(value) is 0):
return "Select any of the bars to section data by time"
else:
return ""
def get_selection(value, slider_value, selection):
xVal = []
yVal = []
xSelected = []
colorVal = ["#F4EC15", "#DAF017", "#BBEC19", "#9DE81B", "#80E41D", "#66E01F",
"#4CDC20", "#34D822", "#24D249", "#25D042", "#26CC58", "#28C86D",
"#29C481", "#2AC093", "#2BBCA4", "#2BB5B8", "#2C99B4", "#2D7EB0",
"#2D65AC", "#2E4EA4", "#2E38A4", "#3B2FA0", "#4E2F9C", "#603099"]
if(selection is not None):
for x in selection:
xSelected.append(int(x))
for i in range(0, 24, 1):
if i in xSelected and len(xSelected) < 24:
colorVal[i] = ('#FFFFFF')
xVal.append(i)
yVal.append(len(totalList[getIndex(value)][slider_value-1]
[totalList[getIndex(value)][slider_value-1].index.hour == i]))
return [np.array(xVal), np.array(yVal), np.array(xSelected),
np.array(colorVal)]
@app.callback(Output("histogram", "figure"),
[Input("my-dropdown", "value"), Input('my-slider', 'value'),
Input("bar-selector", "value")])
def update_histogram(value, slider_value, selection):
[xVal, yVal, xSelected, colorVal] = get_selection(value, slider_value,
selection)
layout = go.Layout(
bargap=0.01,
bargroupgap=0,
barmode='group',
margin=Margin(l=10, r=0, t=0, b=30),
showlegend=False,
plot_bgcolor='#323130',
paper_bgcolor='rgb(66, 134, 244, 0)',
height=250,
dragmode="select",
xaxis=dict(
range=[-0.5, 23.5],
showgrid=False,
nticks=25,
fixedrange=True,
ticksuffix=":00"
),
yaxis=dict(
range=[0, max(yVal)+max(yVal)/4],
showticklabels=False,
showgrid=False,
fixedrange=True,
rangemode='nonnegative',
zeroline='hidden'
),
annotations=[
dict(x=xi, y=yi,
text=str(yi),
xanchor='center',
yanchor='bottom',
showarrow=False,
font=dict(
color='white'
),
) for xi, yi in zip(xVal, yVal)],
)
return go.Figure(
data=Data([
go.Bar(
x=xVal,
y=yVal,
marker=dict(
color=colorVal
),
hoverinfo="x"
),
go.Scatter(
opacity=0,
x=xVal,
y=yVal/2,
hoverinfo="none",
mode='markers',
marker=Marker(
color='rgb(66, 134, 244, 0)',
symbol="square",
size=40
),
visible=True
)
]), layout=layout)
def get_lat_lon_color(selectedData, value, slider_value):
listStr = "totalList[getIndex(value)][slider_value-1]"
if(selectedData is None or len(selectedData) is 0):
return listStr
elif(int(selectedData[len(selectedData)-1])-int(selectedData[0])+2 == len(selectedData)+1 and len(selectedData) > 2):
listStr += "[(totalList[getIndex(value)][slider_value-1].index.hour>"+str(int(selectedData[0]))+") & \
(totalList[getIndex(value)][slider_value-1].index.hour<" + str(int(selectedData[len(selectedData)-1]))+")]"
else:
listStr += "["
for point in selectedData:
if (selectedData.index(point) is not len(selectedData)-1):
listStr += "(totalList[getIndex(value)][slider_value-1].index.hour==" + str(int(point)) + ") | "
else:
listStr += "(totalList[getIndex(value)][slider_value-1].index.hour==" + str(int(point)) + ")]"
return listStr
@app.callback(Output("map-graph", "figure"),
[Input("my-dropdown", "value"), Input('my-slider', 'value'),
Input("bar-selector", "value")],
[State('map-graph', 'relayoutData'),
State('mapControls', 'values')])
def update_graph(value, slider_value, selectedData, prevLayout, mapControls):
zoom = 12.0
latInitial = 40.7272
lonInitial = -73.991251
bearing = 0
listStr = get_lat_lon_color(selectedData, value, slider_value)
if(prevLayout is not None and mapControls is not None and
'lock' in mapControls):
zoom = float(prevLayout['mapbox']['zoom'])
latInitial = float(prevLayout['mapbox']['center']['lat'])
lonInitial = float(prevLayout['mapbox']['center']['lon'])
bearing = float(prevLayout['mapbox']['bearing'])
return go.Figure(
data=Data([
Scattermapbox(
lat=eval(listStr)['Lat'],
lon=eval(listStr)['Lon'],
mode='markers',
hoverinfo="lat+lon+text",
text=eval(listStr).index.hour,
marker=Marker(
color=np.append(np.insert(eval(listStr).index.hour, 0, 0), 23),
colorscale=[[0, "#F4EC15"], [0.04167, "#DAF017"],
[0.0833, "#BBEC19"], [0.125, "9DE81B"],
[0.1667, "#80E41D"], [0.2083, "#66E01F"],
[0.25, "#4CDC20"], [0.292, "#34D822"],
[0.333, "#24D249"], [0.375, "#25D042"],
[0.4167, "#26CC58"], [0.4583, "#28C86D"],
[0.50, "#29C481"], [0.54167, "#2AC093"],
[0.5833, "#2BBCA4"],
[1.0, "#613099"]],
opacity=0.5,
size=5,
colorbar=dict(
thicknessmode="fraction",
title="Time of<br>Day",
x=0.935,
xpad=0,
nticks=24,
tickfont=dict(
color='white'
),
titlefont=dict(
color='white'
),
titleside='left'
)
),
),
Scattermapbox(
lat=["40.7505", "40.8296", "40.7484", "40.7069", "40.7527",
"40.7127", "40.7589", "40.8075", "40.7489"],
lon=["-73.9934", "-73.9262", "-73.9857", "-74.0113",
"-73.9772", "-74.0134", "-73.9851", "-73.9626",
"-73.9680"],
mode='markers',
hoverinfo="text",
text=["Madison Square Garden", "Yankee Stadium",
"Empire State Building", "New York Stock Exchange",
"Grand Central Station", "One World Trade Center",
"Times Square", "Columbia University",
"United Nations HQ"],
# opacity=0.5,
marker=Marker(
size=6,
color="#ffa0a0"
),
),
]),
layout=Layout(
autosize=True,
height=750,
margin=Margin(l=0, r=0, t=0, b=0),
showlegend=False,
mapbox=dict(
accesstoken=mapbox_access_token,
center=dict(
lat=latInitial, # 40.7272
lon=lonInitial # -73.991251
),
style='dark',
bearing=bearing,
zoom=zoom
),
updatemenus=[
dict(
buttons=([
dict(
args=[{
'mapbox.zoom': 12,
'mapbox.center.lon': '-73.991251',
'mapbox.center.lat': '40.7272',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='Reset Zoom',
method='relayout'
)
]),
direction='left',
pad={'r': 0, 't': 0, 'b': 0, 'l': 0},
showactive=False,
type='buttons',
x=0.45,
xanchor='left',
yanchor='bottom',
bgcolor='#323130',
borderwidth=1,
bordercolor="#6d6d6d",
font=dict(
color="#FFFFFF"
),
y=0.02
),
dict(
buttons=([
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-73.9934',
'mapbox.center.lat': '40.7505',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='Madison Square Garden',
method='relayout'
),
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-73.9262',
'mapbox.center.lat': '40.8296',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='Yankee Stadium',
method='relayout'
),
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-73.9857',
'mapbox.center.lat': '40.7484',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='Empire State Building',
method='relayout'
),
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-74.0113',
'mapbox.center.lat': '40.7069',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='New York Stock Exchange',
method='relayout'
),
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-73.785607',
'mapbox.center.lat': '40.644987',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='JFK Airport',
method='relayout'
),
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-73.9772',
'mapbox.center.lat': '40.7527',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='Grand Central Station',
method='relayout'
),
dict(
args=[{
'mapbox.zoom': 15,
'mapbox.center.lon': '-73.9851',
'mapbox.center.lat': '40.7589',
'mapbox.bearing': 0,
'mapbox.style': 'dark'
}],
label='Times Square',
method='relayout'
)
]),
direction="down",
pad={'r': 0, 't': 0, 'b': 0, 'l': 0},
showactive=False,
bgcolor="rgb(50, 49, 48, 0)",
type='buttons',
yanchor='bottom',
xanchor='left',
font=dict(
color="#FFFFFF"
),
x=0,
y=0.05
)
]
)
)
external_css = ["https://cdnjs.cloudflare.com/ajax/libs/skeleton/2.0.4/skeleton.min.css",
"//fonts.googleapis.com/css?family=Raleway:400,300,600",
"//fonts.googleapis.com/css?family=Dosis:Medium",
"https://cdn.rawgit.com/plotly/dash-app-stylesheets/62f0eb4f1fadbefea64b2404493079bf848974e8/dash-uber-ride-demo.css",
"https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"]
for css in external_css:
app.css.append_css({"external_url": css})
@app.server.before_first_request
def defineTotalList():
global totalList
totalList = initialize()
if __name__ == '__main__':
app.run_server(debug=True)