Essentially, when a heatmap for a matrix where all the values are the same (so a monochrome heatmap) is passed to ggplotly, the resulting plotly plot removes the color and renders it all in gray.
library(ggplot2)
library(plotly)
#>
#> Attaching package: 'plotly'
#> The following object is masked from 'package:ggplot2':
#>
#> last_plot
#> The following object is masked from 'package:stats':
#>
#> filter
#> The following object is masked from 'package:graphics':
#>
#> layout
library(viridis)
#> Loading required package: viridisLite
x <- rep(1, 10)
g <- ggplot(data.frame(x), aes(x=x, y=x, fill=x)) +
geom_tile() +
scale_fill_viridis(limits = c(0, 1))
g
Created on 2018-06-29 by the reprex package (v0.2.0.9000).
When ggplotly(g) is run, the output is as follows:
I tried attaching this to the reprex but could not, as reprex does not seem to play well with plotly objects, or I am missing something
As you can see, plotly removes the coloring in the heatmap. What is the problem here?
Hello, I had previously described an issue I faced with heatmaply here: https://stackoverflow.com/questions/50976183/heatmaply-color-when-all-elements-are-the-same-value, and one of the answers pointed out the fact that this was a plotly bug, not a heatmaply bug.
Essentially, when a heatmap for a matrix where all the values are the same (so a monochrome heatmap) is passed to
ggplotly
, the resulting plotly plot removes the color and renders it all in gray.Created on 2018-06-29 by the reprex package (v0.2.0.9000).
When
ggplotly(g)
is run, the output is as follows:I tried attaching this to the reprex but could not, as reprex does not seem to play well with plotly objects, or I am missing something
As you can see, plotly removes the coloring in the heatmap. What is the problem here?