R语言：数据集分割

安装补充包

• conda activate ggsurvplot
• conda install -c conda-forge r-catools -y

划分训练集和验证集

library("caTools")
dat <- readRDS('../data/dat.rds')
set.seed(123)
split = sample.split(substr(rownames(dat),1,2),SplitRatio = .8)
train_data = subset(dat, split == TRUE)
test_data  = subset(dat, split == FALSE)