add warning on ggplot

Author: ritamtbsilva

DESCRIPTION

@@ -31,7 +31,7 @@ Imports:
     edgeR,
     ComplexHeatmap,
     ggh4x,
-    ggplot2 (<= 3.5.2),
+    ggplot2,
     ggpubr,
     grid,
     gridExtra,

R/zzz.R

@@ -0,0 +1,8 @@
+.onAttach <- function(libname, pkgname) {
+  if (packageVersion("ggplot2") > "3.5.2") {
+    packageStartupMessage(
+      "Warning: markeR has been tested with ggplot2 <= 3.5.2. ",
+      "Using newer versions may cause incompatibilities."
+    )
+  }
+}