% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/est_rcce.R
\name{.svd_csa}
\alias{.svd_csa}
\title{SVD of CSA matrix}
\usage{
.svd_csa(Z, npc = NULL, criterion = c("er", "gr"))
}
\arguments{
\item{Z}{Numeric matrix (T x K) of CSA variables.}

\item{npc}{Integer: number of principal components to retain. If \code{NULL},
determined by ER/GR criterion.}

\item{criterion}{Character: \code{"er"} (eigenvalue ratio) or \code{"gr"} (growth
ratio). Default \code{"er"}.}
}
\value{
A list with \code{V_k} (T x k matrix of PCs), \code{eigenvalues}, and \code{k}.
}
\description{
Computes thin SVD and returns right singular vectors (principal components
in the time dimension).
}
\keyword{internal}
