I am trying desperately to adjust my data to be able to execute a Kruskal-Wallis Test. Therefore, I need two variables that have the same length (number of observations) which is not the case. Is it somehow possible to equalise that? One variable has 60 the other only 40 observations but (female and male participants in a survey), to use the data I need one data frame with both variables in the same length...any suggestions?
Thanks in advance!