Euclidean distance

[papel]

Hi to all,
I have a panel dataset with id and timeid and I would like to calculate the Euclidean distance in two variables.
Specifically, in each month I rank all firms on variable X and on variable Y, and I would like to find the minimum Euclidean distance in X and Y rank space, where the distance between firms i and j equals to (rankXi-rankXj)^2+(rankYi-rankYj)^2
Thank you in advance.