FeatureSelectionPlot

class chemotools.plotting.FeatureSelectionPlot(x: ndarray, y: ndarray, support: ndarray, *, selection_color: str = 'red', selection_alpha: float = 0.2, **kwargs: Any)

ベースクラス: SpectraPlot

Plot class for visualizing feature selection on spectral data.

This class extends SpectraPlot to highlight excluded features using colored vertical spans.

パラメータ:

• x (np.ndarray) -- X-axis data (e.g., wavelengths, wavenumbers).

• y (np.ndarray) -- Y-axis data (e.g., spectra intensities).

• support (np.ndarray) -- Boolean mask indicating selected features (True means selected). Must have same length as x.

• selection_color (str, optional) -- Color to use for highlighting excluded features. Default is "red".

• selection_alpha (float, optional) -- Transparency of the selection highlight. Default is 0.2.

• **kwargs (Any) -- Additional arguments passed to SpectraPlot.__init__.

Attributes

color_by
is_categorical
colormap
colorbar_label

show(figsize=(12, 4), title=None, xlabel='X-axis', ylabel='Y-axis', xlim=None, ylim=None, **kwargs) → Figure

Show the spectra plot with given figure size and labels. The excluded features are highlighted with red bars.

パラメータ:

• figsize (tuple, optional) -- Figure size as (width, height) in inches. Default is (12, 4).

• title (str, optional) -- Title for the plot. If None, a default title is generated.

• xlabel (str, optional) -- X-axis label. Default is "X-axis".

• ylabel (str, optional) -- Y-axis label. Default is "Y-axis".

• xlim (tuple, optional) -- X-axis limits as (xmin, xmax). Default is None (auto).

• ylim (tuple, optional) -- Y-axis limits as (ymin, ymax). Default is None (auto).

• **kwargs (Any) -- Additional keyword arguments passed to the plot function.

戻り値:

The matplotlib Figure object containing the plot.

戻り値の型:

Figure

render(ax: Axes | None = None, *, xlabel: str | None = None, ylabel: str | None = None, xlim: tuple[float, float] | None = None, ylim: tuple[float, float] | None = None, **kwargs: Any) → tuple[Figure, Axes]

Render the plot on the given axes or create new ones.

パラメータ:

• ax (Axes, optional) -- Matplotlib axes to plot on. If None, creates new figure and axes.

• xlabel (str, optional) -- X-axis label. Default is "X-axis".

• ylabel (str, optional) -- Y-axis label. Default is "Y-axis".

• xlim (tuple[float, float], optional) -- X-axis limits as (xmin, xmax). When set without ylim, the y-axis automatically scales to fit the data within the x-range.

• ylim (tuple[float, float], optional) -- Y-axis limits as (ymin, ymax). When provided, disables automatic y-scaling.

• **kwargs (Any) -- Additional keyword arguments passed to the plot function.

戻り値:

• fig (Figure) -- The matplotlib Figure object.

• ax (Axes) -- The matplotlib Axes object with the rendered plot.