Dear all,
I just learned that our resource allocation request on the NSF's XSEDE HPC
infrastructure to create a science gateway for 3D quantitative phenotyping is
approved. When implemented, this will be a cloud platform where registered
users can upload their imaging datasets and use the
Not for fractal dimension but this can be done using user friendly free
softwares just google it
Il gio 15 mar 2018 15:17 Tina Klenovšek ha scritto:
> Thank you very much, Paolo. I hope both can be done in NTSYSpc, because
> unfortunately I don't use R.
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> Tina
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Hi Tina,
if your colleagues are interested in the complexity of the leaves shapes
more than in shape itself, it could be useful to compute the fractal
dimension of the outlines of the leaves; it is very easy and it does not
inform you about shape differences but about the "complexity" of the
Hi Tina,
The software Shape by Iwata & Ukai is an user friendly option for
performing elliptic Fourier analysis.
https://academic.oup.com/jhered/article/93/5/384/2187412
http://lbm.ab.a.u-tokyo.ac.jp/~iwata/shape/
Elliptic Fourier analysis is also implemented in NTSYSpc, which is also
Thanks to all, Javier, Vincent, William, Joanna and Dr. Rohlf,
my dilemma occurred because some botanists (I work with mammal skulls) have
asked me to help them evaluate leaf variability of two tree species from
different localities. So, variability within and among individual trees and
One could do that computationally but I would worry about the homology it might
imply for such variable leaf shapes. You might try it and then check to see if,
for example, a lobe on one leaf might be 20% of the linear distance around the
outline but in another it might be 30% of the way