After I unpivot a polars dataframe, how can I pivot it back to its original form without adding an i...

is there a way to implement pandas wide_to_long in Polars?...

Pivot a dataframe using polars.pivot() (like pivot_longer in R)...

How to reshape/unpivot multiple columns in a dataset and split the resulting values into a different...

Polars dataframe: add columns conditional on other column yielding different lengths...

cumulative aggregate a polars list[struct[]]...

Polars dataframe: how to efficiently aggregate over many non-disjoint groups...

Lookup column name in column...

Unstack columns by groups in parallel with polars...

How to select the column from a Polars Dataframe that has the largest sum?...

Polars, compute new column by cross referencing two dataframes...

Polars pivot + unpivot operation with multiple values (pandas stack / unstack alternative / UDF over...

Convert multiindex pandas dataframe to polars dataframe...

Create list column out of column names...

Pythonic way to locate index and column of polars dataframe based on absolute sorted values...

Select columns in a Polars LazyFrame based on a condition without collect?...

Polars syntax for Pandas complex queries...

polars: compute row-wise quantile over DataFrame...

Polars make all groups the same size...

Create a new column based partially on other column names...

How can I execute a set of functions on all columns in a Polars dataframe?...

Polars and the Lazy API: How to drop columns that contain only null values?...

How to apply value_counts() to multiple columns in polars python?...

Get list of column names with values > 0 for every row in polars...

merge some columns in a Polars dataframe and duplicate the others...

Polars: Use column values to reference other column in when / then expression...

Get the first, last occurrence in a time series df in polars...

dictionary to "long" dataframe...

Best way to group_by inside a rolling in polars?...

Correlation dataframe convertion from results from pl.corr...