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Stat

ggplot_rs::stat

Trait Stat 

Source 
pub trait Stat: Send + Sync {
    // Required methods
    fn compute_group(&self, data: &DataFrame, scales: &ScaleSet) -> DataFrame;
    fn required_aes(&self) -> Vec<Aesthetic>;
    fn name(&self) -> &str;

    // Provided methods
    fn default_aes(&self) -> Aes { ... }
    fn panelwise(&self) -> bool { ... }
    fn validate(&self, _warnings: &mut Vec<String>) { ... }
}
Expand description

Trait for statistical transformations.

Required Methods§

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fn compute_group(&self, data: &DataFrame, scales: &ScaleSet) -> DataFrame

Transform data for a single group.

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fn required_aes(&self) -> Vec<Aesthetic>

Required aesthetics this stat needs.

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fn name(&self) -> &str

Name for debug/display.

Provided Methods§

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fn default_aes(&self) -> Aes

Default aesthetic mappings this stat produces.

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fn panelwise(&self) -> bool

If true, the stat receives every row of a panel at once (grouped only by facet variables) instead of once per aesthetic group. Needed for cross-group comparisons such as stat_compare_means, which must see all groups together. Defaults to per-group behaviour.

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fn validate(&self, _warnings: &mut Vec<String>)

Validate the stat’s own fixed configuration (not the data) and push a human-readable warning for each problem found — e.g. StatBinHex::binwidth being NaN, zero or negative. Called once per layer, before compute_group runs (which has no warnings channel of its own: the per-group call only sees &DataFrame and &ScaleSet, not the plot’s warnings sink). Default: no-op.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§