无需变换数据帧即可在R中绘制相关矩阵的简便方法

Question

I have a data frame look like:

> head(mydata)
  V1 V2    V3
1  2 14 0.299
2  2 41 0.284
3  2 71 0.307
4  3 43 0.316
5  3 44 0.366
6  3 84 0.405

my goal is to plot like:

It seems that many ways need to transform the data frame to used corrplot or ggcorrplot . Is there any way more easier to plot the data frame to correlation matrix without transforming the data frame?

Answer 1

It does not seem like a lot of transformation is required for the sample data that you have given.

library(corrplot)
corrplot(cor(mydata), method="color", outline="White")