% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/fct_3_Data_processing.R
\name{big_PCA}
\alias{big_PCA}
\title{Big PCA}
\usage{
big_PCA(FBM, rows, columns)
}
\arguments{
\item{FBM}{A FBM object.}

\item{rows}{Index of rows of the FBM that will be used to calculate the PCA.}

\item{columns}{Index of columns of the FBM that will be used to calculate the PCA..}
}
\value{
A list with the PCA scores and its explained variances
}
\description{
**Internal function.** Not intended for direct use. Exported only for
   `shinymeta` report rendering via `::` access. Use [run_app()] instead.
   A function to perform PCA over a FBM object.
}
\examples{
\donttest{
  # Internal function exported for shinymeta :: access during report rendering.
  # Requires a live Shiny reactive context and real AIRR-seq data.
  # Use run_app() as the user-facing entry point.
}
}
\keyword{internal}
