color scale support for geom_hex_tern?

[Former user]

Hi Nicholas. I am using v2.2.2 for internal documentation supporting an FDA submission, in particular the new geom_hex_tern geometry.

Any plans on allowing the colorscale to be user controlled? Adding a scale_color_gradient command has no effect on the hexbin plot.

Many thanks, John Szumiloski

[Nicholas Hamilton]

John,

It works fine, but you need to assign it to the summary statistic for each hex bin:

Here are two examples, for fill and for colour, respectively.

library(ggtern)

set.seed(1)
n  = 1000
df = data.frame(x  = runif(n),
                y  = runif(n),
                z  = runif(n),
                wt = runif(n))

#Colour
ggtern(df,aes(x,y,z)) + 
  geom_hex_tern(binwidth=0.1,fill='white',aes(color=..stat..)) +
  scale_color_gradient(low='green',high='red')

#Fill
ggtern(df,aes(x,y,z)) + 
  geom_hex_tern(binwidth=0.1,colour='black',aes(fill=..stat..)) +
  scale_fill_gradient(low='green',high='red')

Have I misunderstood what you are seeking?

Cheers,

NH