Reference

All functions
big5	Big 5 Personality Factors
biPlot()	Principal Components Biplot
FA()	Factor Analysis
holland	Holland Occupational Themes
normalize()	Normalize numeric variables
PCA()	Principal Components Analysis
plot(<factorAnalysis>)	Plot a Factor Solution
profile_plot()	Cluster profile plots
score()	Factor and Component Scores
screePlot()	Scree Test
standardize()	Standardize numeric variables
wss_plot()	Within groups sum of squares plot