Enum polars::chunked_array::builder::categorical::RevMapping

pub enum RevMapping {
    Global(HashMap<u32, u32, RandomState, Global>, GenericStringArray<i64>, u128),
    Local(GenericStringArray<i64>),
}

Variants

Global(HashMap<u32, u32, RandomState, Global>, GenericStringArray<i64>, u128)

Local(GenericStringArray<i64>)

Implementations

impl RevMapping

pub fn len(&self) -> usize

pub fn get(&self, idx: u32) -> &str

Categorical to str

pub fn same_src(&self, other: &RevMapping) -> bool

Check if the categoricals are created under the same global string cache.

pub fn find(&self, value: &str) -> Option<u32>

str to Categorical