An all-numeric dataframe where the rows are cases & the columns are
the variables, or a correlation matrix with ones on the diagonal.The function
internally determines whether the data are a correlation matrix.
corkind
The kind of correlation matrix to be used if data is not a correlation matrix.
The options are 'pearson', 'kendall', 'spearman', and 'polychoric'. Required
only if the entered data is not a correlation matrix.
Nfactors
The number of components to extract.
rotate
The factor rotation method. The options are: 'promax', 'varimax', and 'none'.
ppower
The power value to be used in a promax rotation (required only if
rotate = 'promax'). Suggested value: 3
verbose
Should detailed results be displayed in console? The options are: TRUE (default) or FALSE.
Value
A list with the following elements:
eigenvalues
The eigenvalues
loadingsNOROT
The unrotated factor loadings
loadingsROT
The rotated factor loadings (for varimax rotation)
structure
The structure matrix (for promax rotation)
pattern
The pattern matrix (for promax rotation)
correls
The correlations between the factors (for promax rotation)