Error in match.names(clabs, names(xi)) : names do not match previous names

Posted 2022-04-05 Data+Science+Insight

Error in match.names(clabs, names(xi)) : names do not match previous names

目录

Error in match.names(clabs, names(xi)) : names do not match previous names

问题：

解决：

完整问题：

---

问题：

#两个dataframe的名称不同，没法纵向合并；

#横向合并是没有问题的

#create and view first data frame
df1 <- data.frame(var1=c(1, 3, 3, 4, 5),
                  var2=c(7, 7, 8, 3, 2))

df1

#create and view first second frame 
df2 <- data.frame(var3=c(3, 3, 6, 6, 8),
                  var4=c(1, 1, 2, 8, 9))

df2

#attempt to row bind the two data frames
rbind(df1, df2)

解决：

#检查名称是否相同

#check if column names are identical between two data frames
identical(names(df1), names(df2))

[1] FALSE

#重命名之后再合并OK

#define two data frames
df1 <- data.frame(var1=c(1, 3, 3, 4, 5),
                  var2=c(7, 7, 8, 3, 2))

df2 <- data.frame(var3=c(3, 3, 6, 6, 8),
                  var4=c(1, 1, 2, 8, 9))

#rename second data frame columns
names(df2) <- c('var1', 'var2')

#row bind the two data frames
rbind(df1, df2)

完整问题：

> 
> #create and view first data frame
> df1 <- data.frame(var1=c(1, 3, 3, 4, 5),
+                   var2=c(7, 7, 8, 3, 2))
> 
> df1
  var1 var2
1    1    7
2    3    7
3    3    8
4    4    3
5    5    2
> 
> #create and view first second frame 
> df2 <- data.frame(var3=c(3, 3, 6, 6, 8),
+                   var4=c(1, 1, 2, 8, 9))
> 
> df2
  var3 var4
1    3    1
2    3    1
3    6    2
4    6    8
5    8    9
> 
> #attempt to row bind the two data frames
> rbind(df1, df2)
Error in match.names(clabs, names(xi)) : 名字同原来已有的名字不相对