CODEWITHSUNDEEP
pythondataframeholoviewsdatashader
Sara.SP92
Sara.SP92

Reputation: 93

Holoviews - create histogram next to datashader plot

I have a pandas dataframe, data from which I would like to create a datashader plot with a histogram next to it. I get the datashader plot to work but when I try to add the histogram it is not working anymore. What I am doing is the following:

column
2022-04-30 22:00:00+00:00 101.4
2022-04-30 22:03:00+00:00 259.5 
scatter_dict, hist_dict = hv_elements(data, flag="app", colors=colors, num_bins=500, y_range=y_range, 
kind=kind)

curve_overlay = hv.NdOverlay(scatter_dict, kdims='cols')

ds_curve_overlay = dynspread(datashade(curve_overlay,
                          aggregator=ds.count_cat('cols'),
                          y_range=y_range,
                          color_key=colors)).opts(
                height=height,
                title=title,
                xlabel=xlabel,
                ylabel=ylabel,
                xrotation=xrotation,
                active_tools=active_tools,
                hooks=[hv_dateformatter],
                responsive=responsive,
                **kwargs)

Which is working fine.

lnk_sel = link_selections.instance()

h = hv.NdOverlay(hist_dict)

h.opts(width=hist_width,
                       height=height,
                       xrotation=xrotation,
                       xlabel='',
                       ylabel=ylabel,
                       )

dmap = (ds_curve_overlay).opts(height=height)
linked_dmap = lnk_sel(dmap + h)
return linked_dmap

However, every time I try to add the histogram it doesn't work... Does anybody see why I am having this problem?

Thank you in advance,

Upvotes: 0

Views: 70

Answers (1)

Sara.SP92
Sara.SP92

Reputation: 93

I managed to solve the problem I had by doing a panel with both plots:

panel = pn.Row(linked_dmap, h)
return panel.servable()

Upvotes: 0

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