Hello morphometricians,
I am relatively new to morphometrics, and I am attempting to assess ontogenetic
trajectories from a longitudinal sample of growth study x-rays. My subjects are
divided into 2 groups, and I would like to determine whether there are
developmental differences in cranial
Hi Claire, sorry for the delay- I'm travelling.
this looks like an issue with the normals. How does it work with addNormals
=F ?
Emma
On Friday, August 21, 2015, Claire Terhune claire.terh...@gmail.com wrote:
Hi Emma-
I seem to be having a different problem with the read.ply function that
In the botton line of page 53 of Quick Guide to Geomorph v2.1.6 regarding
trajectory.analysis (Y ~ cov + A * B), A and B are called factors, which
seems to suggest that A and B are categorical variables. Continuous
covariates could be included in the formula, but this is only optional. In
Dear Miranda,
Using procD.lm is the correct function for what you want to do. Since you
have just two groups it's a simple Procrustes Anova. Your implementation
should be:
procD.lm(shape~ age*group)
This will give you:
Effect of age; where significant means the shape scales allometrically
