R/make_vis.R

In frequency: Easy Frequency Tables

make_vis <- function(x) {

  row.names(x) <- 1:nrow(x)
  x <- x[!x[[2]] %in% "Total", ]

  x[["Missing"]] <- FALSE
  ind <- which(x[[1]] %in% "Missing"):nrow(x)
  x[["Missing"]][ind] <- TRUE

  x <- x[, -1] # get rid of precol

  x[["label"]][x[[1]] %in% "<NA>"] <- "<NA>"
  x[["label"]][x[[1]] %in% "<blank>"] <- "<blank>"
  x[["label"]][x[["label"]] %in% ""] <- x[[1]][x[["label"]] %in% ""]

  x[["Freq"]][x[["Freq"]] %in% "..."] <- 0
  x$Freq <- as.numeric(x$Freq)
  x$Freq[is.na(x$Freq)] <- 0

  x$fact <- factor(x$label, levels=x$label)


  labels.wrap  <- rev(lapply(strwrap(x$fact, 30, simplify=F),paste,collapse="\n"))

  p <- ggplot() +
    geom_bar(aes_string(x="fact", y = "Freq"), data = x, stat = "identity") +
    coord_flip() + scale_x_discrete(limits = rev(levels(x$fact)),
                                    labels = labels.wrap) +
    theme(axis.title.x = element_blank(),
          axis.title.y = element_blank(),
          aspect.ratio = 1/1)
  p

}