Center multiple pheatmap

Question

[5utr]

I have two versions of the same heatmap, clustered and unclustered. The unclustered version doesn't have the dendrogram on top and when I combine them with patchwork the don't align. How can I center the second heatmap so it aligns with the first one?

library(ggplot2)
library(ggplotify)
library(pheatmap)
library(patchwork)

# dummy df
mat = data.frame(matrix(rnorm(100), nrow=20))
# pheatmap as ggplot
g1 <- as.ggplot(pheatmap(mat))
g2 <- as.ggplot(pheatmap(mat,cluster_cols = F))
# combine 
g1+g2

Answer 1

[prabin.dm]

I think you can use CompleHeatmap package

library(ComplexHeatmap)
mat = data.frame(matrix(rnorm(100), nrow=20))
a <- pheatmap(as.matrix(mat))
b <- pheatmap(as.matrix(mat), cluster_cols = F)
a + b

This aligns very well.

[Ram]

Indeed. ComplexHeatmap renders all other heatmap packages useless by providing any features one might want. pheatmap especially is pretty obsolete, as CH was built to address its shortcomings - as the developer puts it:

The ComplexHeatmap package is inspired from the pheatmap package. You can find many arguments in ComplexHeatmap have the same names as in pheatmap. Also you can find this old package that I tried to develop by modifying pheatmap.