is there a way to get the current keys (or items) of a DynamicMap?
I have a
scatter = df.hvplot.scatter(..., groupby(['col1', 'col2'])and want to get the data for points selected using the box_select tool. Without the
groupby, I can get the points using
sel = streams.Selection1D(source=scatter), then use
sel.index. Unfortunately I noticed that the returned index does not match.
One workaround I found was to to get the data for the selected points using
subset = scatter.data[scatter.last_key].dframe().iloc[sel.index]
items are ordered alphabetically as far as I can see, while I’d need the latest/current selected groupby/key.
Is there either a way to get the current keys or another way to get the currently selected points, or is this only possible for a simple scatter plot without grouping?
While I didn’t find a proper solution, a workaround is to do data down-selection and plotting in panel, using a callback to load/create a dataframe with the subset of data instead of the use of
This still won’t allow for
col options to organize y categorical columns though.
I tried to use the relatively new feature of linked brushing (which didn’t even exist when I looked for something similar the last time). While this is an awesome addition, it also seems not to work with plots using
groupby to split data as far as I could tell.