我有一个数据框,对于每一行,我想从变量名称部分创建一个变量并为其分配相应的值,这样我最终会得到三个变量(variable1< - “c”等)
d <- data.frame(
variable_name = c("variable1", "variable2", "variable3"),
variable_value = c("c", "a", "b")
)
目前我能想到的唯一方法就是手动列出我想要拿出的每一行
variable1 <- subset(d,variable_name == "variable1")[1,2]
variable2 <- subset(d,variable_name == "variable2")[1,2]
variable3 <- subset(d,variable_name == "variable3")[1,2]
感谢任何帮助,谢谢
答案 0 :(得分:2)
尝试:
list2env(setNames(as.list(as.character(d$variable_value)),
d$variable_name), envir=.GlobalEnv)
variable1
#[1] c
variable2
#[1] "a"