如何更改heatmap.2中的颜色键高度

Question

我正在尝试减小 heatmap.2 颜色键的大小

现在是这样的

key=T,  # add the key color
key.title =NA,
cexRow = 0.75, 
cexCol=0.75,

我想降低它的高度并变成这样

这就是我绘制热图的方式

heatmap.2(mat_data,
          key=T,  # add the key color
          key.xlab="label",
          key.title =NA,
          cexRow = 0.75, 
          cexCol=0.75,
          #lhei = c(5,5),
          #cellnote = mat_data,  # will display the values 
          main = "title to be shonwn ", # heat map title
          #notecol=NA,          # change font color of cell labels to black
          density.info="none",  # turns off density plot inside color legend
          trace="none",         # turns off trace lines inside the heat map
          margins =c(15,20),     # widens margins around plot
          col=myPalette,       # use on color palette defined earlier
          breaks=col_breaks,    # enable color transition at specified limits
          dendrogram="row",     # only draw a row dendrogram
          Colv="NA",
          notecex=1.0)  

我找到

密钥大小=1

可以更改大小，因为您无权根据需要调整大小

Answer 1

这可以通过lhei参数设置heatmap.2()

heatmap.2(data,lhei = c(1,7))

该参数是一个长度为 2 的向量，似乎是键和热图的相对高度。