Hi Dennis
I was able to my problem. Thank you encouragement and time.
n<-7
newvars <- c(paste('m', rep(1:n, each = 4), rep(c('a', 'b')), rep(c('p1',
'p2'), each = 2), sep = ''))
newvars
[1] "m1ap1" "m1bp1" "m1ap2" "m1bp2" "m2ap1" "m2bp1" "m2ap2" "m2bp2" "m3ap1"
[10] "m3bp1" "m3ap2" "m3bp2" "m4ap1" "m4bp1" "m4ap2" "m4bp2" "m5ap1" "m5bp1"
[19] "m5ap2" "m5bp2" "m6ap1" "m6bp1" "m6ap2" "m6bp2" "m7ap1" "m7bp1" "m7ap2"
[28] "m7bp2"
Umesh R
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