Option to discard labels in guide_dendrogram

[teunbrand]

Convenient if you want to use a secondary discrete axis for labeling. Control at the scale level would also propagate to the secondary axis.

[teunbrand]

This is now possible:

library(ggh4x)
#> Loading required package: ggplot2

clust <- hclust(dist(USArrests), "ave")

df <- data.frame(
  State = rownames(USArrests)[row(USArrests)],
  variable = colnames(USArrests)[col(USArrests)],
  value = unname(do.call(c, USArrests))
)

p <- ggplot(df, aes(variable, State, fill = value)) +
  geom_raster()

# Plotting without labels
p + scale_y_dendrogram(hclust = clust, labels = NULL)

# Setting scale labels to NULL is not useful if you want them at the other side
p + scale_y_dendrogram(hclust = clust, labels = NULL) +
  guides(y.sec = guide_axis())

# The solution would be to set `label = FALSE` in the guide itself.
p + scale_y_dendrogram(hclust = clust, guide = guide_dendro(label = FALSE)) +
  guides(y.sec = guide_axis())

^{Created on 2021-01-07 by the reprex package (v0.3.0)}