Hello Everybody ! This is my first post, but not the last i hope!   I'm working on tasting results. Tasters put samples in different groups, if the letter is the same, samples are in the same group. the first colum is the ref of the sample and after i have a colum by taster. I have a table like that : NUM ECH    D1   D2   D3 123               A      A      B 234               A      B      B 345               B      B     C   I would like to have a new table by taster, with 0 if samples are in the same groupe and 1 if they are not. For the first taster the new table is : NUM ECH    123     234     345 123                0        0          1 234                0        0          1 345                1        1          0   I don't have any trouble to create this new table for one taster, but i would like to all taster, so for all colums. At the end, i have to sum all the table to have distance between samples. For that, i don't really know how to use colums as variable, if it's possible or not ... May you help me ? i'm begining to script in JMP ! Thank you for your help !     Margaux   ... View more