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How to change the name of data frames stored in an R list?
To change the name of data frames stored in an R list, we can follow the below steps −
First of all, create a list of data frames.
Then, use names function to change the name of data frames.
Example
Create the list of data frames
Using data.frame function to create data frames and list function to create the list of those data frames −
df1<-data.frame(x1=rpois(25,5),x2=rpois(25,3),x3=rpois(25,1)) df2<-data.frame(y1=rpois(25,5),y2=rpois(25,3),y3=rpois(25,1)) List<-list(df1,df2) List
Output
On executing, the above script generates the below output(this output will vary on your system due to randomization) −
[[1]] x1 x2 x3 1 5 2 0 2 1 4 3 3 1 2 2 4 3 2 0 5 6 4 2 6 5 3 0 7 4 1 2 8 3 1 1 9 4 1 0 10 4 3 0 11 5 2 1 12 7 3 3 13 2 3 0 14 5 5 0 15 9 5 0 16 4 1 1 17 2 3 1 18 6 4 1 19 4 4 0 20 9 9 1 21 9 1 1 22 4 1 2 23 5 5 0 24 5 4 1 25 4 2 0 [[2]] y1 y2 y3 1 3 6 1 2 9 6 1 3 8 5 0 4 8 5 2 5 7 3 0 6 6 1 0 7 6 5 0 8 4 2 0 9 2 3 0 10 2 3 1 11 5 1 1 12 6 8 0 13 2 3 2 14 9 2 0 15 5 4 2 16 5 2 0 17 7 3 0 18 5 3 1 19 10 2 0 20 3 4 1 21 5 6 1 22 10 2 4 23 6 5 0 24 3 0 1 25 1 0 1
Change the name of data frames in list
Using names function to change the name of data frames stored in list called List as shown below −
df1<-data.frame(x1=rpois(25,5),x2=rpois(25,3),x3=rpois(25,1)) df2<-data.frame(y1=rpois(25,5),y2=rpois(25,3),y3=rpois(25,1)) List<-list(df1,df2) names(List)<-c("X","Y") List
Output
$X x1 x2 x3 1 9 3 0 2 2 5 1 3 4 2 0 4 7 5 1 5 3 5 2 6 2 2 3 7 7 2 0 8 2 1 1 9 1 2 1 10 9 4 1 11 5 3 1 12 8 6 0 13 7 3 2 14 6 2 2 15 4 5 0 16 5 1 0 17 5 3 0 18 7 1 1 19 3 5 0 20 4 3 0 21 8 1 1 22 4 0 1 23 10 0 0 24 8 4 4 25 3 6 0 $Y y1 y2 y3 1 5 3 1 2 5 5 2 3 5 2 1 4 2 3 1 5 3 5 3 6 3 3 0 7 3 1 0 8 6 4 2 9 8 3 0 10 3 0 1 11 6 1 0 12 4 4 0 13 5 2 0 14 4 2 1 15 9 3 2 16 7 4 1 17 5 2 2 18 6 2 2 19 3 1 0 20 4 4 1 21 3 1 0 22 3 4 3 23 7 2 1 24 1 5 4 25 8 3 0
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