Updating Data in Bokeh
1
I'm new to Bokeh and not sure how to get my plot data and how to update it.
My code is following these instructions:
https://github.com/WillKoehrsen/Bokeh-Python-Visualization/blob/master/interactive/exploration/interactive_development.ipynb
But unfurtunately the update method doesn't seem to work for me. i was trying to find documentation regarding this method but couldn't find any. can anyone assist?
basically i've generated a pandas dataframe from my data and converted it to ColumnDataSource. now i want to add or subtract data from it but the new ColumnDataSource does not update the old one.
Any help would be most appreciated! This is my code as of now, it still won't update properly:
def update(attr, old, new):
stations_to_plot = [int(station_selection.labels[i]) for i in station_selection.active]
by_station = pd.DataFrame(data=no_bikes.loc[stations_to_plot,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
new_src = ColumnDataSource(by_station.T)
r.data_source.data.update(new_src.data)
stations=list(map(str,no_bikes.loc[:,'station_avg'].nlargest(10).index.tolist()))
station_selection = CheckboxGroup(labels=stations, active = [0,1,3])
station_selection.on_change('active', update)
initial_stations = [int(station_selection.labels[i]) for i in station_selection.active]
range_select = RangeSlider(start = 0, end = 23, value = (0, 23),step = 1, title = 'Hours to plot')
range_select.on_change('value', update)
by_station = pd.DataFrame(data=no_bikes.loc[initial_stations,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
src = ColumnDataSource(by_station.T)
p = figure(plot_width = 500, plot_height = 500, title = 'Chances not to find bikes',
x_axis_label = 'Hour of the day', y_axis_label = 'Proportion',x_range=src.data['index'])
for i,station in enumerate(src.data.keys()):
if station in list(map(str, initial_stations)):
r=p.line(x='index',y=station,source =src, legend='Station N.'+station, color=Category20_16[i], line_width=5)
controls = WidgetBox(station_selection,range_select)
layout = row(controls, p)
curdoc().add_root(layout)
python bokeh
asked Nov 25 '18 at 23:12
Lior TLior T
5417
add a comment |
1
I'm new to Bokeh and not sure how to get my plot data and how to update it.
My code is following these instructions:
https://github.com/WillKoehrsen/Bokeh-Python-Visualization/blob/master/interactive/exploration/interactive_development.ipynb
But unfurtunately the update method doesn't seem to work for me. i was trying to find documentation regarding this method but couldn't find any. can anyone assist?
basically i've generated a pandas dataframe from my data and converted it to ColumnDataSource. now i want to add or subtract data from it but the new ColumnDataSource does not update the old one.
Any help would be most appreciated! This is my code as of now, it still won't update properly:
def update(attr, old, new):
stations_to_plot = [int(station_selection.labels[i]) for i in station_selection.active]
by_station = pd.DataFrame(data=no_bikes.loc[stations_to_plot,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
new_src = ColumnDataSource(by_station.T)
r.data_source.data.update(new_src.data)
stations=list(map(str,no_bikes.loc[:,'station_avg'].nlargest(10).index.tolist()))
station_selection = CheckboxGroup(labels=stations, active = [0,1,3])
station_selection.on_change('active', update)
initial_stations = [int(station_selection.labels[i]) for i in station_selection.active]
range_select = RangeSlider(start = 0, end = 23, value = (0, 23),step = 1, title = 'Hours to plot')
range_select.on_change('value', update)
by_station = pd.DataFrame(data=no_bikes.loc[initial_stations,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
src = ColumnDataSource(by_station.T)
p = figure(plot_width = 500, plot_height = 500, title = 'Chances not to find bikes',
x_axis_label = 'Hour of the day', y_axis_label = 'Proportion',x_range=src.data['index'])
for i,station in enumerate(src.data.keys()):
if station in list(map(str, initial_stations)):
r=p.line(x='index',y=station,source =src, legend='Station N.'+station, color=Category20_16[i], line_width=5)
controls = WidgetBox(station_selection,range_select)
layout = row(controls, p)
curdoc().add_root(layout)
python bokeh
asked Nov 25 '18 at 23:12
Lior TLior T
5417
Issrca global variable? Could you provide a minimal example?from_dfmay be useful if you are using a DataFrame to update the data
– ChesuCR
Nov 26 '18 at 12:53
@ChesuCR i've updated my code into the question. Thanks in advance!
– Lior T
Nov 26 '18 at 23:02
I meant a minimal "working" example haha,no_bikesis not defined. Anyway, you also tried to update the source directly, right?src.data = new_src.dataKeep in mind that you are iterating over the stations in the loop and you are overriding thervariable. You should use a list if you want to store all the renderers, if not you will get only the last one:r.append(p.line... )
– ChesuCR
Nov 26 '18 at 23:33
add a comment |
1
1
1
I'm new to Bokeh and not sure how to get my plot data and how to update it.
My code is following these instructions:
https://github.com/WillKoehrsen/Bokeh-Python-Visualization/blob/master/interactive/exploration/interactive_development.ipynb
But unfurtunately the update method doesn't seem to work for me. i was trying to find documentation regarding this method but couldn't find any. can anyone assist?
basically i've generated a pandas dataframe from my data and converted it to ColumnDataSource. now i want to add or subtract data from it but the new ColumnDataSource does not update the old one.
Any help would be most appreciated! This is my code as of now, it still won't update properly:
def update(attr, old, new):
stations_to_plot = [int(station_selection.labels[i]) for i in station_selection.active]
by_station = pd.DataFrame(data=no_bikes.loc[stations_to_plot,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
new_src = ColumnDataSource(by_station.T)
r.data_source.data.update(new_src.data)
stations=list(map(str,no_bikes.loc[:,'station_avg'].nlargest(10).index.tolist()))
station_selection = CheckboxGroup(labels=stations, active = [0,1,3])
station_selection.on_change('active', update)
initial_stations = [int(station_selection.labels[i]) for i in station_selection.active]
range_select = RangeSlider(start = 0, end = 23, value = (0, 23),step = 1, title = 'Hours to plot')
range_select.on_change('value', update)
by_station = pd.DataFrame(data=no_bikes.loc[initial_stations,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
src = ColumnDataSource(by_station.T)
p = figure(plot_width = 500, plot_height = 500, title = 'Chances not to find bikes',
x_axis_label = 'Hour of the day', y_axis_label = 'Proportion',x_range=src.data['index'])
for i,station in enumerate(src.data.keys()):
if station in list(map(str, initial_stations)):
r=p.line(x='index',y=station,source =src, legend='Station N.'+station, color=Category20_16[i], line_width=5)
controls = WidgetBox(station_selection,range_select)
layout = row(controls, p)
curdoc().add_root(layout)
python bokeh
asked Nov 25 '18 at 23:12
Lior TLior T
5417
I'm new to Bokeh and not sure how to get my plot data and how to update it.
My code is following these instructions:
https://github.com/WillKoehrsen/Bokeh-Python-Visualization/blob/master/interactive/exploration/interactive_development.ipynb
But unfurtunately the update method doesn't seem to work for me. i was trying to find documentation regarding this method but couldn't find any. can anyone assist?
basically i've generated a pandas dataframe from my data and converted it to ColumnDataSource. now i want to add or subtract data from it but the new ColumnDataSource does not update the old one.
Any help would be most appreciated! This is my code as of now, it still won't update properly:
def update(attr, old, new):
stations_to_plot = [int(station_selection.labels[i]) for i in station_selection.active]
by_station = pd.DataFrame(data=no_bikes.loc[stations_to_plot,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
new_src = ColumnDataSource(by_station.T)
r.data_source.data.update(new_src.data)
stations=list(map(str,no_bikes.loc[:,'station_avg'].nlargest(10).index.tolist()))
station_selection = CheckboxGroup(labels=stations, active = [0,1,3])
station_selection.on_change('active', update)
initial_stations = [int(station_selection.labels[i]) for i in station_selection.active]
range_select = RangeSlider(start = 0, end = 23, value = (0, 23),step = 1, title = 'Hours to plot')
range_select.on_change('value', update)
by_station = pd.DataFrame(data=no_bikes.loc[initial_stations,:'23 PM'].values,index=list(map(str,initial_stations))
,columns=no_bikes.loc[:,:'23 PM'].columns.tolist())
src = ColumnDataSource(by_station.T)
p = figure(plot_width = 500, plot_height = 500, title = 'Chances not to find bikes',
x_axis_label = 'Hour of the day', y_axis_label = 'Proportion',x_range=src.data['index'])
for i,station in enumerate(src.data.keys()):
if station in list(map(str, initial_stations)):
r=p.line(x='index',y=station,source =src, legend='Station N.'+station, color=Category20_16[i], line_width=5)
controls = WidgetBox(station_selection,range_select)
layout = row(controls, p)
curdoc().add_root(layout)
python bokeh
python bokeh
asked Nov 25 '18 at 23:12
Lior TLior T
5417
asked Nov 25 '18 at 23:12
Lior TLior T
5417
edited Nov 26 '18 at 23:01
Lior T
asked Nov 25 '18 at 23:12
Lior TLior T
5417
asked Nov 25 '18 at 23:12
Lior TLior T
5417
asked Nov 25 '18 at 23:12
Lior TLior T
5417
5417
Issrca global variable? Could you provide a minimal example?from_dfmay be useful if you are using a DataFrame to update the data
– ChesuCR
Nov 26 '18 at 12:53
@ChesuCR i've updated my code into the question. Thanks in advance!
– Lior T
Nov 26 '18 at 23:02
I meant a minimal "working" example haha,no_bikesis not defined. Anyway, you also tried to update the source directly, right?src.data = new_src.dataKeep in mind that you are iterating over the stations in the loop and you are overriding thervariable. You should use a list if you want to store all the renderers, if not you will get only the last one:r.append(p.line... )
– ChesuCR
Nov 26 '18 at 23:33
add a comment |
Issrca global variable? Could you provide a minimal example?from_dfmay be useful if you are using a DataFrame to update the data
– ChesuCR
Nov 26 '18 at 12:53
@ChesuCR i've updated my code into the question. Thanks in advance!
– Lior T
Nov 26 '18 at 23:02
I meant a minimal "working" example haha,no_bikesis not defined. Anyway, you also tried to update the source directly, right?src.data = new_src.dataKeep in mind that you are iterating over the stations in the loop and you are overriding thervariable. You should use a list if you want to store all the renderers, if not you will get only the last one:r.append(p.line... )
– ChesuCR
Nov 26 '18 at 23:33
Is
src a global variable? Could you provide a minimal example? from_df may be useful if you are using a DataFrame to update the data– ChesuCR
Nov 26 '18 at 12:53
Is
src a global variable? Could you provide a minimal example? from_df may be useful if you are using a DataFrame to update the data– ChesuCR
Nov 26 '18 at 12:53
@ChesuCR i've updated my code into the question. Thanks in advance!
– Lior T
Nov 26 '18 at 23:02
@ChesuCR i've updated my code into the question. Thanks in advance!
– Lior T
Nov 26 '18 at 23:02
I meant a minimal "working" example haha,
no_bikes is not defined. Anyway, you also tried to update the source directly, right? src.data = new_src.data Keep in mind that you are iterating over the stations in the loop and you are overriding the r variable. You should use a list if you want to store all the renderers, if not you will get only the last one: r.append(p.line... )– ChesuCR
Nov 26 '18 at 23:33
I meant a minimal "working" example haha,
no_bikes is not defined. Anyway, you also tried to update the source directly, right? src.data = new_src.data Keep in mind that you are iterating over the stations in the loop and you are overriding the r variable. You should use a list if you want to store all the renderers, if not you will get only the last one: r.append(p.line... )– ChesuCR
Nov 26 '18 at 23:33
add a comment |
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Is
srca global variable? Could you provide a minimal example?from_dfmay be useful if you are using a DataFrame to update the data– ChesuCR
Nov 26 '18 at 12:53
@ChesuCR i've updated my code into the question. Thanks in advance!
– Lior T
Nov 26 '18 at 23:02
I meant a minimal "working" example haha,
no_bikesis not defined. Anyway, you also tried to update the source directly, right?src.data = new_src.dataKeep in mind that you are iterating over the stations in the loop and you are overriding thervariable. You should use a list if you want to store all the renderers, if not you will get only the last one:r.append(p.line... )– ChesuCR
Nov 26 '18 at 23:33