[MORPHMET] Question about MorphoJ/Landmarking

2019-03-27 Thread Sara Schoen
Hello! I'm working on the beginnings of a masters thesis and part of it is taking over a project from a previous student. I am learning MorphoJ to help finish that project, but the original student used 14 landmarks (LMs) and we've realized some of those are not helpful in our anaylsis. They

[MORPHMET] Visualizing shape differences in PCA

2019-03-27 Thread Charles Zhang
Dear all, I'm using the Geomorph package in R to do the PCA. It shows the negative-most and positive-most shapes of a PC, which is really great. I just want to ask if there is any way to visualize shape change along a certain PC? I know that Morphologika does this by allowing one to move the

RE: [MORPHMET] Question about MorphoJ/Landmarking

2019-03-27 Thread Murat Maga
x-uw-ex-currentlocation-365-recipient: Outside x-microsoft-antispam-prvs: x-forefront-prvs: 0989A7979C x-forefront-antispam-report:

RE: [MORPHMET] Visualizing shape differences in PCA

2019-03-27 Thread Adams, Dean [EEOBS]
Charles, There are several ways to do what you wish within geomorph. First, the plotTangentSpace function does allow one to specify which axes are plotted. This can be useful for obtaining shape deformations along the extremes of axes other than PC1 and PC2. A more flexible option is to

Re: [MORPHMET] Question about MorphoJ/Landmarking

2019-03-27 Thread Amanda Hale
Hi Sara, In the Preliminaries menu in MorphoJ there is the option to Select Landmarks where you can include/exclude any landmarks in your total set. This will create a new dataset with only the landmarks you want. As for informative landmarks, that depends on the structure under study as well