spatPerm2D: Permute an array of occurances under a given set of...
In mcglinnlab/vario: Community variograms and associated null models
spatPerm2D R Documentation
Permute an array of occurances under a given set of constraints in 2-D space
Description
Permute an array of occurances under a given set of constraints in 2-D space
Usage
spatPerm2D(psp, shiftpos = NULL, rotate = NULL, meth = "shift", sp = FALSE)
Arguments
psp
the sp x row x col array, where rows and columns specify where on
the spatial grid the sample was located
shiftpos
two numbers that are the x and y places to shift the grid,
this is generated randomly if needed
rotate
a single number 1-4 that indicates how many counterclockwise
rotations to perform, generated randomly
meth
the type of permutation to use, options include: 1) reflect:
random, 2) reflection/rotations of species (only makes sence when sp are
not fixed 3) shift: random torodial shifting with or with sp fixed 4) both:
both reflection and shifting 5) random: random shuffle
sp
if FALSE then obs composition of quadrats is fixed to the observed
pattern if TRUE then species are each shuffled independently
mcglinnlab/vario documentation built on Feb. 22, 2023, 1:49 p.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
| spatPerm2D | R Documentation |
Permute an array of occurances under a given set of constraints in 2-D space
Description
Permute an array of occurances under a given set of constraints in 2-D space
Usage
spatPerm2D(psp, shiftpos = NULL, rotate = NULL, meth = "shift", sp = FALSE)
Arguments
psp |
the sp x row x col array, where rows and columns specify where on the spatial grid the sample was located |
shiftpos |
two numbers that are the x and y places to shift the grid, this is generated randomly if needed |
rotate |
a single number 1-4 that indicates how many counterclockwise rotations to perform, generated randomly |
meth |
the type of permutation to use, options include: 1) reflect: random, 2) reflection/rotations of species (only makes sence when sp are not fixed 3) shift: random torodial shifting with or with sp fixed 4) both: both reflection and shifting 5) random: random shuffle |
sp |
if FALSE then obs composition of quadrats is fixed to the observed pattern if TRUE then species are each shuffled independently |
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.