| biplot | Draw a bi-plot, comparing 2 selected principal components / eigenvectors. |
| chooseGavishDonoho | Choosing PCs with the Gavish-Donoho method |
| chooseMarchenkoPastur | Choosing PCs with the Marchenko-Pastur limit |
| eigencorplot | Correlate principal components to continuous variable metadata and test significancies of these. |
| findElbowPoint | Find the elbow point in the curve of variance explained by each successive PC. This can be used to determine the number of PCs to retain. |
| getComponents | Return the principal component labels for an object of class 'pca'. |
| getLoadings | Return component loadings for principal components from an object of class 'pca'. |
| getVars | Return the explained variation for each principal component for an object of class 'pca'. |
| pairsplot | Draw multiple bi-plots. |
| parallelPCA | Perform Horn's parallel analysis to choose the number of principal components to retain. |
| pca | PCAtools |
| plotloadings | Plot the component loadings for selected principal components / eigenvectors and label variables driving variation along these. |
| screeplot | Draw a SCREE plot, showing the distribution of explained variance across all or select principal components / eigenvectors. |