[R] Filtering few column from one data frame based on another data frame

[Rui Barradas]

Hello,

Try the following.

keep <- which(!names(data2) %in% names(data1))
data1[, keep]

Hope this helps,

Rui Barradas
Em 13-10-2012 15:48, siddu479 escreveu:
> Dear R-Users and experts,
> This is my first post in this forum.
>
> I have two csv files file1 and file2.
> file1(many rows and columns) is read into dataframe *data1*
> File2 is read into dataframe *data2* which have only one column of data
> which contains the column names that need to be removed from dataframe
> *data1*columns and update the *data1 *data frame.
> Example:
> data1 <-read.csv(file1.......,header=T)
> Sno,Data_1,Data_2,Data_3
> 1,2,3,4
>
> data2<- read.csv(file2,......header=F)
> Data_2
> Data_3
>
> The output *data1.new* data frame  should be like this
>
> Sno,Data_1
> 1,2
>
> So I request the R code to accomplish this task.
>
> Regards
> Sidda
>
>
>
>
> --
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