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Added log transformation argument for color scale #316

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Added log transformation argument for color scale #316

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2 changes: 1 addition & 1 deletion DESCRIPTION
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ Imports:
DOSE (>= 3.31.2),
ggfun (>= 0.1.7),
ggnewscale,
ggplot2,
ggplot2 (>= 3.5.0),
ggrepel (>= 0.9.0),
ggtangle (>= 0.0.5),
graphics,
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9 changes: 7 additions & 2 deletions R/utilities.R
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Expand Up @@ -19,7 +19,7 @@ get_enrichplot_color <- function(n = 2) {

if (n != 2 && n != 3) stop("'n' should be 2 or 3")

colors = c("#e06663", "#327eba")
colors = c("#ec2b54", "#005087")
if (n == 2) return(colors)

if (n == 3) return(c(colors[1], "white", colors[2]))
Expand All @@ -34,6 +34,7 @@ get_enrichplot_color <- function(n = 2) {
##' @param name name of the color legend
##' @param .fun force to use user provided color scale function
##' @param reverse whether reverse the color scheme, default is TRUE as it is more significant for lower pvalue
##' @param log_transform whether or not to log-transform the color scale, default is TRUE as p-values operate over a wide range of orders of magnitude
##' @param ... additional parameter that passed to the color scale function
##' @return a color scale
##' @importFrom ggplot2 scale_fill_continuous
Expand All @@ -42,7 +43,8 @@ get_enrichplot_color <- function(n = 2) {
##' @importFrom ggplot2 scale_color_gradientn
##' @export
set_enrichplot_color <- function(colors = get_enrichplot_color(2),
type = "color", name = NULL, .fun = NULL, reverse=TRUE, ...) {
type = "color", name = NULL, .fun = NULL,
reverse = TRUE, log_transform = TRUE, ...) {

type <- match.arg(type, c("color", "colour", "fill"))
if (!reverse) colors = rev(colors)
Expand Down Expand Up @@ -77,6 +79,9 @@ set_enrichplot_color <- function(colors = get_enrichplot_color(2),

params$guide <- guide_colorbar(reverse=reverse, order=1)
params$name <- name # no legend name setting by default as 'name = NULL'
if (log_transform) {
params$transform <- "log10"
}

params <- modifyList(params, list(...))

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