Dean MacGregor

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Dean MacGregor has asked 29 questions and find answers to 83 problems.

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Dean MacGregor questions

How to filter rows out of data.table where any column is NA without specifying columns individually
How to select all columns plus an additional expression
Why does Perl's DateTime throw an error when trying to add() time with the 'hour' option?
ggmap, using coord_cartesian pushes all points to the north
How to convert Date to timezone aware datetime in polars
How to use a polars column with offset string to add to another date column
How to get output from Fiona instead of fiona.model object
How to incorporate projected columns in scanner into new dataset partitioning
Filter data.table by quantity of group
How to sign XML with xmlsec (or other more appropriate package)

Dean MacGregor answers

Apply a function to 2 columns in Polars [duplicate]
How to filter rows out of data.table where any column is NA without specifying columns individually
Python (Polars): Vectorized operation of determining current solution with the use of previous variables
creating a new column in polars applying a function to a column
Polars UDF - returning and concatenating dataframes
Replace value by null in Polars [duplicate]
Polars - use is_in() with durations
How to filter a Polars DataFrame with list type columns?
How to turn a list of Polars expressions into one multi-column expression?
How to ignore previous nulls when using diff or shift in Polars?