DataLab is a compact statistics package aimed at exploratory data analysis. Please visit the DataLab Web site for more information.... 
Home Features of DataLab Mathematical/Statistical Analysis Modelling PCA Biplot  
See also: PCA, PCA Loading/Loading Plot, PCA Loadings Plot, PCA Scores Plot, Guided Tour: Principal component analysis


PCA BiplotThe biplot shows both the loadings and the scores for two selected components in parallel. Please note that both the scores and the loadings are scaled to a maximum value of 1.0. A line from the origin to each loading point is drawn to emphasize possible groups of variables. The numbers at the loading points correspond to the variable indices.
Left to the biplot there are several controls for changing the display options. In addition to the selection boxes for choosing the principal components to be displayed there are several buttons which provide the following functionality:

