I am currently trying to test the degree of difference (measured as a Mahalanobis distance) between two groups.
To give some background I have 2 groups of fish that differ in their life history strategy (groups A and B), these two groups have then been exposed to different conditions to induce a phenotypic response (conditions 1 and 2). I have then compared these groups in MorphoJ using a single canonical variate analysis. The out put gives me a Mahalanobis distance for all comparisons but the ones I am interested in are for fish group A1 and A2 and for the fish group B1 and B2. The question I want to answer is one group more plastic in their response to the 2 different conditions - So I need to test if the Mahalanobis distance between A1 and A2 fish is significantly more, less or not significant than the Mahalanobis distance between B1 and B2, fish but there is no variation around the Mahalanobis distance to allow a test.. Is there a way of extracting all the Mahlanobis distances for each individual from MorphoJ so I can then test these in a linear model or equivalent? Or does anyone know a way of doing this? Thanks in advance Oliver Hooker PR~Statistics -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
