> table(indvar_SNB$Dotcounting_SNB) A-B-C-D A-C-B-D A-D-B-C B-A-C-D B-A-D-C B-C B-C-D-A D-C-B-A missing 2720 80 80 160 80 80 80 160 80 using RStudio, to be able to continue with the statistical analysis, please exclude 'missing' values, as NA in this variable
{r} indvar_SNB[is.na(indvar_SNB$Dotcounting_SNB),]