[R] Reverse the scoring of some Columns of a Data Set

[AbouEl-Makarim Aboueissa]

Dear All: goods morning

Is there is a way to reverse the scoring of the first three columns x1, x2,
and x3 and keep the original scores for the fourth column x4.


*Here is an example of the data set:*

x1 x2 x3 x4
2  5   4   4
1  1   1   6
1  2   1   6
2  3   2   4
1  2   1   6
1  3   1   6
2  2   2   5
2  1   1   6
2  2   4   5
5  5   2   1

I am expecting the output to be:
x1 x2 x3 x4
5  5   2   4
2  2   4   6
2  1   1   6
2  2   2   4
1  3   1   6
1  2   1   6
2  3   2   5
1  2   1   6
1  1   1   5
2  5   4   1



thank you very much for your help and support
abou
______________________
AbouEl-Makarim Aboueissa, PhD
Department of Mathematics and Statistics
University of Southern Maine

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