Plot principal components analysis (PCA) components

visualizes the PCA coefficients as a heatmap

# Author: L.Kouadio
# Licence: BSD-3-clause

Plot can be made with PCA objects

from watex.datasets import fetch_data
from watex.utils.plotutils import plot_pca_components
from watex.analysis import nPCA
X, _= fetch_data('bagoue pca')
pca = nPCA (X, n_components=2, return_X =False)# to return object
plot_pca_components (pca)

Plot made using the components and features individually

components = pca.components_
features = pca.feature_names_in_
plot_pca_components (components, feature_names= features,
                         cmap='jet_r')