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I am plotting several figures using grid plot like following.

p.list <- list()
for (i in 1:length(paths)){
  p <- plotQC(get(paste0("sce_",i)), type = "highest-expression")
  p.list[[i]] <- p
}
cowplot::plot_grid(plotlist = p.list)

How to add sub headers/titles on each plot. for example Sample#1, Sample#2 etc?

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  • What package is plotQC from? Commented Dec 27, 2018 at 16:54

1 Answer 1

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You may use labels and all the related parameters, such as hjust to shift the text as needed:

l <- list(qplot(1:10, 1:10) , qplot(1:10, (1:10)^2))
plot_grid(plotlist = l, labels = paste0("Sample #", 1:2), hjust = -1)

enter image description here

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