ComplexHeatmap包绘制热图（二）
前面我介绍了如何利用ComplexHeatmap包绘制简单的热图，现在我们绘制一个稍微复杂一些的热图
首先还是配置数据
data=matrix(rnorm(100),nrow=10)
colnames(data)=paste0('sample',1:10)
rownames(data)=paste0('gene',1:10)
head(data)
准备另外一个数据
anno_row=as.matrix(1:10)
rownames(anno_row)=paste0('gene',1:10)
colnames(anno_row)='bar_data'
anno_row
p1=Heatmap(data,
col=c('blue','white','red'),
cluster_rows = TRUE,
cluster_columns = TRUE,
name='expression',
column_title = "samples",
column_title_side="bottom")
p2 = rowAnnotation(width = unit(2, "cm"),
bar_data = anno_barplot(anno_row,
border = FALSE,
axis = TRUE,
gp = gpar(fill = "grey50",
col = "white"),
bar_with = 0.8,
baseline=0))
p1+p2
这时候绘制的热图加bar图已经出现原形了
但是我也发现行名无法显示，这时候我们可以在p1的左侧加一个标签，或者是P2的右侧加一个文本
左侧加标签
left_anno=data.frame(gene_id=rownames(data))
left_annos = HeatmapAnnotation(df = left_anno,which = "row")
p1=Heatmap(data,
col=c('blue','white','red'),
cluster_rows = TRUE,
cluster_columns = TRUE,
name='expression',
column_title = "samples",
column_title_side="bottom",
left_annotation=left_annos)
p2 = rowAnnotation(width = unit(2, "cm"),
bar_data = anno_barplot(anno_row,
border = FALSE,
axis = TRUE,
gp = gpar(fill = "grey50",
col = "white"),
bar_with = 0.8,
baseline=0))
p1+p2
右侧加文本
p1=Heatmap(data,
col=c('blue','white','red'),
cluster_rows = TRUE,
cluster_columns = TRUE,
name='expression',
column_title = "samples",
column_title_side="bottom",
left_annotation=left_annos)
p2 = rowAnnotation(width = unit(2, "cm"),
bar_data = anno_barplot(anno_row,
border = FALSE,
axis = TRUE,
gp = gpar(fill = "grey50",
col = "white"),
bar_with = 0.8,
baseline=0))
p3=rowAnnotation(text = row_anno_text(rownames(data)),
width = max_text_width(rownames(data)))
p1+p2+p3
当然ComplexHeatmap包绘制的不仅仅如此，还有很多其他的功能，这里先不介绍了，有兴趣的小伙伴可以研究研究哈！