separate sparsify for header and body

[youlyst]

hi
i would welcome if option sparsify could be set separately for header and body
as i want body without sparsify=False and head with sparsify=True
what do you think about it?

[jreback]

pls show an example of what you mean

[youlyst]

i mean sparsify parameter in DataFrameto_html
df.to_html(sparsify_head=True, sparsify_body=False)

[jreback]

not sure what this would mean. can you show an example.

[youlyst]

if i well understand doc string
sparsify : bool, optional Set to False for a DataFrame with a hierarchical index to print every multiindex key at each row, default True
each row means that above aplies also on columns
so it is imposible to handle use case with i.e to sparsify only columns in html header, and not rows index

so maybe sparsify could be integer instead of bool, and it will allow to hold choices like:
0 - dont sparsify at all
1 - sparsify only header
2 - sparsify only body
3 - sparsify both header and body

[jreback]

xref #11610

@youlyst I am inclined to have this done thru the new .style interface which allows customization of html repr. .to_html will use this at some point.

cc @TomAugspurger

[TomAugspurger]

Yeah I've been working on sparsify a bit. Should have something next week.

[attack68]

df.style.to-html can already do this. perhaps will extend to df.to-html when the redirection is in place.

[mroeschke]

Closing as this feature is available in Styler