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MapFeatures

scirs2_datasets::streaming::transforms

Struct MapFeatures 

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pub struct MapFeatures { /* private fields */ }
Expand description

Row-level feature mapping: applies a function Array1<f64> → Array1<f64> to every row independently.

The output dimensionality may differ from the input; all rows must produce the same output length.

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impl MapFeatures

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pub fn new( f: impl Fn(&Array1<f64>) -> Array1<f64> + Send + Sync + 'static, ) -> Self

Create a feature map from an arbitrary function.

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impl Transform for MapFeatures

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fn apply( &self, chunk: StreamingDataChunk, ) -> Result<StreamingDataChunk, DatasetsError>

Apply the transformation to chunk, returning a (potentially new) chunk. Implementations may mutate in place and return the same chunk, or allocate a new one.

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