How to Rename Variables in R

In R language, variables can be renamed using the names() function or by directly assigning new names.

1. What are the names?

# 创建一个数据框
data <- data.frame(var1 = c(1, 2, 3),
                   var2 = c("A", "B", "C"))

# 使用names()函数重命名变量
names(data)[names(data) == "var1"] <- "new_var1"
names(data)[names(data) == "var2"] <- "new_var2"

# 查看重命名后的变量名
names(data)

1. Directly through assignment:

# 创建一个数据框
data <- data.frame(var1 = c(1, 2, 3),
                   var2 = c("A", "B", "C"))

# 直接通过赋值方式重命名变量
names(data)[1] <- "new_var1"
names(data)[2] <- "new_var2"

# 查看重命名后的变量名
names(data)

Both methods can be used to rename variables, the specific choice depends on individual habits and needs.