我有一个包含不同变量的数据集列表.我需要根据下面name个数据框中的命名约定重命名它们.
df1 <- data.frame(x1= c(1,2,3), x2=c(1,2,3))
df2 <- data.frame(x1= c(1,2,3), x3=c(1,2,3))
df3 <- data.frame(x4= c(1,2,3), x5=c(1,2,3))
mylist <- list(df1,df2,df3)
name <- data.frame(old= c("x1","x2","x3","x4","x5"), new=c("A","B","A","A","C"))
我可以一个接一个地这样做，但我想知道如何更高效地同时重命名它们
newdf <- map_if(mylist, ~ "x1" %in% colnames(.x),
.f = list(. %>% rename("A"="x1")))
我本来希望这样的事情能奏效，但事实并非如此:
for (i in nrow(name)) {
newdf <- map_if(mylist, ~ name[i,1] %in% colnames(.x),
.f = list(. %>% rename(name[2] = name[1])))
}