使用 创建热图时heatmaply::heatmaply()
,会对原始数据执行一些转换。这在以下示例中很明显,其中提供了一些 iris 数据集,但将鼠标悬停在热图上会显示一些负值(不在提供给 的原始数据中heatmaply()
),并且侧面的颜色栏也显示负值.
https://i.stack.imgur.com/Mt0vGm.png
library(heatmaply)
mat <- iris[1:20, 1:4] %>% as.matrix
p <- heatmaply(mat,
dendrogram = "none",
xlab = "", ylab = "",
main = "",
scale = "column",
margins = c(60,100,40,20),
grid_color = "white",
grid_width = 0.00001,
titleX = FALSE,
hide_colorbar = FALSE,
branches_lwd = 0.1,
label_names = c("Country", "Feature:", "Value"),
fontsize_row = 5, fontsize_col = 5,
labCol = colnames(mat),
labRow = rownames(mat),
heatmap_layers = theme(axis.line=element_blank()),
colors = rev(c("000000", heat.colors(30)[1:28]))
)
p
不同的比例iris[1:20, 1:4]
:
https://i.stack.imgur.com/nuMcn.png
问题
如何仅根据提供的原始值(无转换)heatmaply::heatmaply()
生成热图?
注意:开放使用其他包/功能/建议