space or in any direction of interest within the PC
> space.
>
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> _ _ _ _ _ _ _ _ _
>
> F. James Rohlf, Distinguished Prof. Emeritus
>
> [image: univautosig]
>
> Depts. of Anthropology and of Ecology & Evolution
>
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>
>
>
> *From:* Yi
.
_ _ _ _ _ _ _ _ _
F. James Rohlf, Distinguished Prof. Emeritus
Depts. of Anthropology and of Ecology & Evolution
From: Yinan Hu <yinanhu...@gmail.com>
Sent: Friday, May 18, 2018 2:19 PM
To: MORPHMET <morphmet@morphometrics.org>
Subject: Re: [MORPHMET] How to project shape
Dear James,
Thanks for the reply. Yes I have completed a PCA on a GM dataset with 11
landmarks, and you got it exactly right that I'm trying to decompose shape
differences onto individual PCs.
The reason I was hesitating to do the vector projection is that I'm not
sure if PC scores on
Dear Dr. Hu,
Let me begin by restating how I understand the question: You have completed
a PCA on a morphological data set in which there are two subsets of
interest. Now you would like to decompose the difference between the two
subsets into differences along individual PCs. Here is my two cents
Dear colleagues,
I'm trying to figure out how to break down shape differences onto
individual PC axes. I have a morphospace where PC1 explains 60% of shape
variation and PC2 explains 20% of variation. Two subsets of samples of
particular interest do not differ much along PC1, but differs
