BUG: Styler.hide_columns() does not hide index name row

[attack68]

Whilst Styler.hide_index() hides column header name (along with the index), the index name row persists when Styler.hide_columns() is used to hide column headers.

The index names rows should also be hidden, since currently there is no way to hide it independently.

What to do:

1. Find pandas/io/formats/style_render.py
2. Find the method for the StyleRenderer called _translate_header and read the documentation what it is trying to structure.
3. Go to the section in the method labelled # 2 and insert self.hide_columns_ into the conditional.
4. Add a test to pandas/tests/io/formats/style/test_style.py that addresses this.

[raghuabhishek]

take

[skvrahul]

Can a user not call Styler.hide_index().hide_columns() to achieve this?
As they both are separate configurations?

[attack68]

Can a user not call Styler.hide_index().hide_columns() to achieve this?
As they both are separate configurations?

if hide_index is called the index name row is hidden, but that is not the point. The user should be able to call hide_columns and the index name row should be hidden without the necessity of also having to hide the index-labels.

Note the difference between the name of the index, and the actual index-label values.

[raghuabhishek]

Hi @attack68, Can you please give an example for better understanding of this issue.

[skvrahul]

The user should be able to call hide_columns and the index name row should be hidden without the necessity of also having to hide the index-labels.

@attack68 this already seems to be the case for me on the master branch

> df = pd.DataFrame({'A': np.random.randint(50, size=10), 'B': np.random.randint(50, size=10)})
> df.style.hide_columns() 

0	34	47
1	3	35
2	0	18
3	23	11
4	17	35
5	17	15
6	1	39
7	36	9
8	15	18
9	4	7
.....

am I missing something?

[raghuabhishek]

Hi @skvrahul how did you get the dataframe as an output after executing this line "df.style.hide_columns()" . For me its returning a styler object. Did u typecast? If yes, how?

[skvrahul]

Hi @skvrahul how did you get the dataframe as an output after executing this line "df.style.hide_columns()" . For me its returning a styler object. Did u typecast? If yes, how?

Running it in a Jupyter Notebook should output a table by rendering the underlying HTML.

[attack68]

@skvrahul @raghuabhishek you both seem to be confused by the name of an index and the values of an index, be it, a row-index or a column-index. The mentioned documentation in the OP should clarify this also, but here is a screenshot of the issue on master:

[skvrahul]

Yeah this clears things up. Thanks!

Looks like I missed naming the index in my example, which threw me off.