Merge pull request #183 from NEST/prf/182_plot_height_error_message_n…

…ew_slider

more helpful message to end user

R/g_lineplot.R

@@ -456,8 +456,12 @@ g_lineplot <- function(label = "Line Plot",
   tabletotal <- lines * minline * ifelse(display_center_tbl, 2, 1)
   plotsize <- plot_height - tabletotal
   if (plotsize <= 250) {
-    stop("Due to number of line splitting levels default plot height is not sufficient to display. Please adjust the
-    plot height using the Plot Aesthetic Settings.")
+    stop("Due to number of line splitting levels the current plot height is not sufficient to display plot.
+    If applicable, please try a combination of:
+      * increasing the plot height using the Plot Aesthetic Settings,
+      * increasing the relative height of plot to table(s),
+      * increasing the initial maximum plot_height argument during creation of this app,
+      * and / or consider removing the mean / median table.")
   }
   if (display_center_tbl) {
     unfiltered_data$center <- if (median) {