remove_units.R

#' Remove units
#'
#' \code{\link{remove_units}} Remove units from sf,  data.frames, matrix or units.
#'
#' @param x Object with class "sf",  "data.frame", "matrix" or "units"
#' @param verbose Logical, to print more information
#' @return "sf", data.frame", "matrix" or numeric
#' @keywords units
#' @importFrom sf st_geometry st_set_geometry
#' @export
#' @examples \dontrun{
#' ef1 <- ef_cetesb(p = "CO", c("PC_G", "PC_FE"))
#' class(ef1)
#' sapply(ef1, class)
#' (a <- remove_units(ef1))
#' }
remove_units <- function(x, verbose = FALSE){

  if(inherits(x, "sf")) {
    geo <- sf::st_geometry(x)
    ef <- sf::st_set_geometry(x, NULL)

    if(verbose) cat("Finding numeric columns")
    sapply(ef, is.numeric) -> isn

    disn <- as.data.frame(isn)

    disn$cols <- row.names(disn)

    cols <- disn[disn$isn == TRUE, ]$cols

    for(i in seq_along(cols)){
      ef[[cols[i]]] <- as.numeric(ef[[cols[i]]])
    }

    ef <- sf::st_sf(ef, geometry = geo)
  } else if ( is.matrix(x) ) {
    ef <- as.data.frame(x)

    for(i in 1:ncol(ef)){
      ef[,i] <- as.numeric(ef[,i])
    }

  } else if ( is.data.frame(x) ) {
    ef <- x

    if(verbose) cat("Finding numeric columns")

    sapply(ef, is.numeric) -> isn

    disn <- as.data.frame(isn)

    disn$cols <- row.names(disn)

    cols <- disn[disn$isn == TRUE, ]$cols

    for(i in seq_along(cols)){
      ef[[cols[i]]] <- as.numeric(ef[[cols[i]]])
    }

  } else if(is.character(x) | is.list(x) | is.array(x)){
    ef <- x
    #nada
  } else {
    ef <- as.numeric(x)
  }
  return(ef)
}