comp        col     chr pch
0.0256626   black   MT  20
0.03112212  black   MT  20
0.03295112  black   MT  20
0.03294942  black   1   20
0.02806124  black   1   20
0.03224467  black   1   20
0.03153024  black   1   20
0.0333732   black   1   20
0.03294344  black   1   20
0.02285203  black   1   20
0.03283011  black   1   20
0.0334126   blue    1   20
0.02593233  black   2   20
0.0297971   red     2   20
0.02666644  black   2   20
0.02882936  black   2   20
0.02870307  black   2   20
0.03222953  black   2   20
0.03314435  black   2   20
0.03346504  black   2   20
0.03131088  black   2   20
0.02862249  black   3   20
0.02477703  black   3   20
0.02890272  black   3   20
0.02822164  black   3   20
0.02886585  black   3   20
0.02753727  black   3   20
0.03026732  black   3   20
0.02918728  black   4   20
0.03045214  black   4   20


plot(file$comp, ylim = c(0,0.2), col=file$col,
         cex=file$cex, pch = file$pch, xaxt="n")