Trait polars::prelude::ChunkAgg

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pub trait ChunkAgg<T> {
    // Provided methods
    fn sum(&self) -> Option<T> { ... }
    fn min(&self) -> Option<T> { ... }
    fn max(&self) -> Option<T> { ... }
    fn min_max(&self) -> Option<(T, T)> { ... }
    fn mean(&self) -> Option<f64> { ... }
}
Expand description

Aggregation operations.

Provided Methods§

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fn sum(&self) -> Option<T>

Aggregate the sum of the ChunkedArray. Returns None if not implemented for T. If the array is empty, 0 is returned

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fn min(&self) -> Option<T>

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fn max(&self) -> Option<T>

Returns the maximum value in the array, according to the natural order. Returns None if the array is empty or only contains null values.

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fn min_max(&self) -> Option<(T, T)>

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fn mean(&self) -> Option<f64>

Returns the mean value in the array. Returns None if the array is empty or only contains null values.

Implementors§