a data frame, a numeric matrix, covariance matrix or correlation matrix from which to determine the number of factors.
...
further argument for cor_nest().
References
Velicer, W. F. (1976). Determining the number of components from the matrix of partial correlations. Psychometrika, 41(3), 321-327. tools:::Rd_expr_doi("10.1007/BF02293557")