在R中合并和保留变量标签 [英] Merging and keeping variable labels in R

问题描述

我正在尝试合并以大量变量为特征的不同数据框，这些变量用诸如 c302 ， c303 等。从SPSS导入的原始文件保留了非常有用的标签。

I´m trying to merge different data frames which are characterized by a very large number of variables, which are named with codes such as c302, c303, etc. The original file imported from SPSS keeps very useful labels.

当我尝试合并那些数据框时（使用 cbind 或 merge ），我丢失了所有变量标签。可以保留它们吗？

When I try to merge those data frames (using cbind or merge), I lose all the variable labels. Is it possible to keep them?

推荐答案

而不是使用 merge ，使用dplyr的 left_join 保留属性：

Instead of using merge, use dplyr's left_join as it preserves attributes:

library(dplyr)
library(haven)

df1 <- read_sav("one.sav")
df2 <- read_sav("two.sav")

df <- left_join(x = df1, y = df2, by = "var_name")

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