说我已经创建了一个测试矩阵4 * 4矩阵:创建彩色矩阵R中
varieties = c("A", "B", "C", "D")
matVar = matrix(c(1,5,3,4,8,5,2,8,9,4,6,5,3,7,3,2), nrow = length(varieties), ncol = length(varieties))
我有一个矩阵,如下所示:
[,1] [,2] [,3] [,4]
[1,] 1 8 9 3
[2,] 5 5 4 7
[3,] 3 2 6 3
[4,] 4 8 5 2
如何创建一个R中的热图图像使得行和列被命名为品种(A,B,C,D),并且颜色按该品种组合之间的值进行分级?
我曾尝试以下:
library(reshape2)
library(ggplot2)
tdm <- melt(matVar)
ggplot(tdm, aes(x = varieties, y = varieties, fill = factor(value))) +
labs(x = "Variety", y = "Variety", fill = "Value") +
geom_raster()
并且得到错误:
Error: Aesthetics must either be length one, or the same length as the dataProblems:varieties, varieties
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'heatmap(matVar)'?或者你寻找一个* ggplot2 *解决方案?在这种情况下,请用* ggplot2 *标签标记您的问题。 – sgibb