If the expectation of the empirical estimator for mean p-value is a
function of the number iterations that becomes asymptotically unbiased,
then this would explain the simulation results (attachment in the original
posting), since for small number of iterations, some bias would remain, and
onl
Yes that is more precise.
In my post to the query I only noted that the variance in significance levels
across multiple permutation tests decreases as the number of iterations
increases. Joe's post provides the equation for the expected value of that
variance; mine provided reference to an emp
Thank you Mauro for the suggestions. Indeed, as you surmise, digitizing within
R is not at all straightforward, but we will do our best to improve the
experience for users of geomorph.
Best,
Dean
Dr. Dean C. Adams
Professor
Department of Ecology, Evolution, and Organismal Biology
Depar
Dear members of the geomorph Development Team,
I have been using the digitize2d() function of the geomorph R package to
obtain landmark coordinates from my fish specimens.It works fine, but I
respectfully have two suggestions for its improvement.
First one is quite simple: when end of file is rea
Jo,
There were two issues with the file. First, you had single curly quotes in
front of the specimen names. These should be simple ascii character quotes
instead.
Second, you had missing data in one of the specimens. For downstream analyses
in geomorph that is fine, but at present the read.mo
Dear all,
I'm trying to read a morphologika formatted file into geomorph, but getting
the following error message:
> read.morphologika("combodatatest.txt")
Error in dimnames(coords)[[3]] <- names :
length of 'dimnames' [3] not equal to array extent
I'm not sure how I've formatted the .txt file
Zack Daugherty ha scritto:
Hello all,
This is my first time wading into geometric mophometry as a PhD candidate.
First off the project:
I plan to track geometric morphometry data of Nassau grouper we have raised
in the lab. There are some 130 juveniles that are now capable of being
anesthet
