polars_compute::cast

Function binary_to_dictionary

Source 
pub fn binary_to_dictionary<O: Offset, K: DictionaryKey>(
    from: &BinaryArray<O>,
) -> PolarsResult<DictionaryArray<K>>
Expand description

Cast BinaryArray to DictionaryArray, also known as packing.

ยงErrors

This function errors if the maximum key is smaller than the number of distinct elements in the array.