我有一个矩阵,我试图使用 R 中的 corrplot 包进行可视化。该矩阵中的值是治疗组相对于对照组的倍数变化(1 表示没有变化,>1 表示治疗组增强, <1 meaning treatment group reduced). Is there a way to utilize corrplot such that all values < 1 are on a red gradient, all values > 1 在绿色渐变上,所有值 = 1 都是白色?
这是我尝试过的:
样本数据:
testdata = matrix(rnorm(10, 1, 0.1), nrow = 5)
testdata
[,1] [,2]
[1,] 1.1368602 1.0123854
[2,] 0.9774229 1.0215942
[3,] 1.1516471 1.0379639
[4,] 0.8451247 0.9497677
[5,] 1.0584614 0.9666793
corrplot(testdata, is.corr = FALSE, col.lim = c(0, max(testdata)))
产生以下内容:
如您所见,值 > 1 与 < 1. If anyone is able to share any way to set a transition point on the corrplot package that places all values > 阈值之间没有分界,因为在一种颜色渐变上和所有值 < threshhold as being on another color gradient I would be extremely grateful! Thank you for your time.
你可以用
col
参数来做到这一点。
library(corrplot)
#> corrplot 0.92 loaded
set.seed(123)
testdata = matrix(rnorm(10, 1, 0.1), nrow = 5)
corrplot(testdata,
is.corr = FALSE,
col.lim = c(min(testdata), max(testdata)),
col = COL2("RdBu"),
)
创建于 2023-05-03 与 reprex v2.0.2