Trait polars_core::chunked_array::ops::ChunkCompare

source · 
pub trait ChunkCompare<Rhs> {
    type Item;

    fn equal(&self, rhs: Rhs) -> Self::Item;
    fn not_equal(&self, rhs: Rhs) -> Self::Item;
    fn gt(&self, rhs: Rhs) -> Self::Item;
    fn gt_eq(&self, rhs: Rhs) -> Self::Item;
    fn lt(&self, rhs: Rhs) -> Self::Item;
    fn lt_eq(&self, rhs: Rhs) -> Self::Item;
}
Expand description

Compare Series and ChunkedArray’s and get a boolean mask that can be used to filter rows.

Example

use polars_core::prelude::*;
fn filter_all_ones(df: &DataFrame) -> PolarsResult<DataFrame> {
    let mask = df
    .column("column_a")?
    .equal(1)?;

    df.filter(&mask)
}

Required Associated Types§

Required Methods§

Check for equality.

Check for inequality.

Greater than comparison.

Greater than or equal comparison.

Less than comparison.

Less than or equal comparison

Implementors§