1、
a <- 1:5
b <- 3:7
c <- 5:9
d <- 4:8
e <- data.frame(a, b, c, d)
e
e[e == 5] = 500
e
![](https://www.icode9.com/i/l/?n=20&i=blog/1447599/202110/1447599-20211028204250477-105191722.png)
2、在指定列替换
a <- 1:5
b <- 3:7
c <- 5:9
d <- 4:8
e <- data.frame(a, b, c, d)
e
for (i in c(1,3)) {
e[,i][e[,i] == 5] = "500"
}
e
![](https://www.icode9.com/i/l/?n=20&i=blog/1447599/202110/1447599-20211028204555473-255159660.png)
标签:语言,批量,指定,替换,数据,框中
来源: https://www.cnblogs.com/liujiaxin2018/p/15477675.html