grepl with loop in R -


saw posts around general expression if 'value' contains 'char' how can done on length vector?

    v1 <- c('123','456','789','4433','77666')     v2 <- c('9999','9998','91239','9987','8877666','789','100')

but when function want return ('t','f','t','f','t') 

    df<-0     for(i in 1:length(v1))     {     for(j in 1:length(v2))     df[i]<-grepl(i,j)     }

any appreciated - thanks!


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