R/ones.R

In PopED: Population (and Individual) Optimal Experimental Design

#' Create a matrix of ones
#' 
#' Create a matrix of ones of size (dim1 x dim2). 
#' 
#' 
#' @param dim1 The dimension of the matrix (if square) or the number of rows.   
#' @param dim2 The number of columns 
#' @return A matrix of ones
#' @family MATLAB
#' @example tests/testthat/examples_fcn_doc/examples_ones.R
#' @export
## Function written to match MATLAB function
## Author: Andrew Hooker

ones <- function(dim1,dim2=NULL){
  if(is.null(dim2)){
    if(length(dim1)==2){
      tmp <- dim1
      dim1 <- tmp[1]
      dim2 <- tmp[2]
    } else if(length(dim1)==1){
      dim2 <- dim1
    } else {
      stop("first argument can only have one or two values")
    }
  }
  mat <- matrix(1,dim1,dim2)
  return(mat)
}