在R中从非选定的行名中删除NAs

Question

我有一组我想要画的基因，我已经重新命名了。但当我策划他们的时候，我也会得到那些没有被选中的人的NAs。我怎样才能删除只显示我所选基因的NAs？

library(pheatmap)
set.seed(2020)
    mat = matrix(rnorm(200),20,10)
    rownames(mat) = paste0("g",1:20)
    rownames(mat)[rownames(mat) == "g2"] <- "abc"
    rownames(mat)[rownames(mat) == "g4"] <- "pqr"
    rownames(mat)[rownames(mat) == "g6"] <- "zzz"
    selected_genes <- c("abc","pqr", "zzz")
    obj = pheatmap(mat,cluster_rows = T, scale = 'row', show_rownames = T, labels_row = selected_genes)

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我见过你也可以做这样的事：

labRow <- c(row.names(mat)[1], rep('', length(row.names(mat))-2)) # Selected row2 as example
pheatmap(mat,cluster_rows = T, scale = 'row', show_rownames = T, labels_row = labRow) 

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Answer 1

由于您已经发现将label_row参数填充为非打印值，所以您应该尝试：

obj = pheatmap(mat,cluster_rows = T, scale = 'row', show_rownames = T, 
                           labels_row = c(selected_genes,rep("   ",17) ) ) 

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