Cargo Features

ndarray-histogram has no features set by default.

[dependencies]
ndarray-histogram = { version = "0.4.0", features = ["rayon"] }
default

These default features are set whenever ndarray-histogram is added without default-features = false somewhere in the dependency tree.

Enables stacker of ndarray-slice

rayon

Enables rayon, rayon of ndarray and ndarray-slice

ndarray-histogram has 2 features without comments.