#' create various PCA graphes
#'
#' @author Byungju Kim (bjk@inu.ac.kr)
#' @param x vector, and list objects.
#' @import plotly
#' @examples
#' BKtbl(billboard)
#' @export
plot_evec <- function(evec,axis,color,shape,colors,shapes) {
## read axis var to determine 2d or 3d plot.
}
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