Add annotation color bar to ggplot or ggvis barplot

Question

[yuezh]

Does anyone know how to add an annotation color bar to a ggplot or ggvis/plotly/... barplot?

An example would be like "Heatmap 1" below, with a color bar (blue and red) representing sample information as type a or type b:

[cpad0112]

can you post some example data?

Answer 1

[Hussain Ather]

See heatmap annotations https://bioconductor.org/packages/3.7/bioc/vignettes/ComplexHeatmap/inst/doc/s4.heatmap_annotation.html

[yuezh]

Thanks! But this method only applies to ComplexHeatmap, do we have something similar in ggplot2/Rplotly/ggvis..?

[Yun]

Did you find some good methods? I have met the same question

Answer 2

[arta]

You can use aheatmap package.