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stocktckrdash.py
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stocktckrdash.py
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import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output, State
import pandas_datareader.data as web # requires v0.6.0 or later
from datetime import datetime
import pandas as pd
app = dash.Dash()
nsdq = pd.read_csv('../data/NASDAQcompanylist.csv')
nsdq.set_index('Symbol', inplace=True)
options = []
for tic in nsdq.index:
options.append({'label':'{} {}'.format(tic,nsdq.loc[tic]['Name']), 'value':tic})
app.layout = html.Div([
html.H1('Stock Closing Price Comparison Tracker'),
html.Div([
html.H3('Select stock symbols:', style={'paddingRight':'30px'}),
dcc.Dropdown(
id='my_ticker_symbol',
options=options,
value=['TSLA'],
multi=True
)
], style={'display':'inline-block', 'verticalAlign':'top', 'width':'30%'}),
html.Div([
html.H3('Select start and end dates:'),
dcc.DatePickerRange(
id='my_date_picker',
min_date_allowed=datetime(2015, 1, 1),
max_date_allowed=datetime.today(),
start_date=datetime(2018, 1, 1),
end_date=datetime.today()
)
], style={'display':'inline-block'}),
html.Div([
html.Button(
id='submit-button',
n_clicks=0,
children='Submit',
style={'fontSize':24, 'marginLeft':'30px'}
),
], style={'display':'inline-block'}),
dcc.Graph(
id='my_graph',
figure={
'data': [
{'x': [1,2], 'y': [3,1]}
]
}
)
])
@app.callback(
Output('my_graph', 'figure'),
[Input('submit-button', 'n_clicks')],
[State('my_ticker_symbol', 'value'),
State('my_date_picker', 'start_date'),
State('my_date_picker', 'end_date')])
def update_graph(n_clicks, stock_ticker, start_date, end_date):
start = datetime.strptime(start_date[:10], '%Y-%m-%d')
end = datetime.strptime(end_date[:10], '%Y-%m-%d')
traces = []
for tic in stock_ticker:
df = web.DataReader(tic,'iex',start,end)
traces.append({'x':df.index, 'y': df.close, 'name':tic})
fig = {
'data': traces,
'layout': {'title':', '.join(stock_ticker)+' Closing Prices'}
}
return fig
if __name__ == '__main__':
app.run_server()