Extract Sparse Loadings from a fitted "abesspca" object.
Extract Sparse Loadings from a fitted "abesspca" object.
This function provides estimated coefficients from a fitted "abesspca" object.
## S3 method for class 'abesspca'coef(object, support.size =NULL, kpc =NULL, sparse =TRUE,...)
Arguments
object: An "abesspca" project.
support.size: An integer vector specifies the coefficient fitted at given support.size. If support.size = NULL, then all coefficients would be returned. Default: support.size = NULL. This parameter is omitted if sparse.type = "kpc".
kpc: An integer vector specifies the coefficient fitted at given principal component. If kpc = NULL, then all coefficients would be returned. Default: kpc = NULL. This parameter is omitted if sparse.type = "fpc".
sparse: A logical value, specifying whether the coefficients should be presented as sparse matrix or not. Default: sparse = TRUE.
...: Other arguments.
Returns
A matrix with length(support.size) columns. Each column corresponds to a sparse loading for the first principal component, where the number of non-zeros entries depends on the support.size.