ComplexHeatmap - Annotation without a named vector
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@andrewjskelton73-7074
Last seen 2.0 years ago
United Kingdom

Hi, 

I'm trying to make a few heatmaps dynamically, however I'm having a bit of trouble when trying to make the annotation object.

According to the guides, you need to provide a named vector to the col argument in HeatmapAnnotation function, however I can't do that when generating dynamically, as there's different annotations. I've tried an un-named vector, but I get the following error every time:

Error in ColorMapping(name = name, colors = col, na_col = na_col) : 
  either provide `levels` or provide named `colors`.

Code:

  ha = HeatmapAnnotation(df  = df, 
                         col = list(type = c("black", "red")))

Any suggestions? - I feel like I've missed something obvious but can't seem to nail it down.

Thanks, 

 

complexheatmap • 2.9k views
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jokergoo ▴ 130
@jokergoo-8506
Last seen 7 weeks ago
Germany

in following code:

 ha = HeatmapAnnotation(df  = df, 
                         col = list(type = c("black", "red")))

change `c("black", "red")` to a vector with names that names correspond to the levels in `df$type` so that we can correctly map colors to `df$type`.

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Hi, I was wanting to do this without a named vector, is there any way for the col argument to automatically take the first element of the vector, for the first level in the data frame column, for example?

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Hi, now it is supported in the newest version. You can update it by `devtools::install_github("jokergoo/ComplexHeatmap")`

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En, not in current version, but I will support it in future versions.

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