aggregate_by_group      Aggregate loadings or contributions by group
change_loadings_sign_spca
                        Change the sign of selected loadings in an spca
                        object
compare_spca            Compare two or more spca solutions
holzinger               Holzinger-Swineford Student Ability data
holzinger_scales        Holzinger-Swineford Student Ability scales
is.spca                 Test for spca objects
new_spca                Construct an spca object from a set of loadings
pca                     Compute principal components
plot.spca               Plot an spca object
print.spca              Print an spca object
show_contributions_spca
                        Show nonzero contributions by component
spca                    Compute LS-SPCA components
spca-package            Least Squares Sparse Principal Components
                        Analysis
spca_object             Sparse principal component analysis object
spca_screeplot          Plot eigenvalues in a scree plot
summary.spca            Summarize an spca object
wachter_qqplot          Wachter QQ plot for eigenvalues
