example – Copy.csv

INDIVIDUAL,pop,M1,M2,M3,M4,M5,M6,M7,M8,M9
IND1,Aline,TT,CC,GG,GG,GG,CC,CC,TT,AA
IND2,Bline,TT,CC,GG,GG,GG,CC,AA,TT,AA
IND3,Rline,TT,GG,AA,GG,GG,TT,CC,CC,AA
IND4,Inbredline,TT,CC,AA,GG,GG,CC,CC,TT,AA
IND5,Bline,TT,CC,GG,GG,GG,CC,CC,TT,AA

dd <- readr::read_delim(“example – Copy.csv” , delim = “,”) out <- dd %>% dplyr::filter(INDIVIDUAL %in% c(“IND” ,”IND1″))
out

A tibble: 2 x 11

INDIVIDUAL pop M1 M2 M3 M4 M5 M6 M7 M8 M9

1 IND1 Aline TT CC GG GG GG CC CC TT AA
2 IND1 Aline TT CC GG GG GG CC CC TT AA