Displaying 4 results from an estimated 4 matches for "markcorr".
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marcori
2010 Apr 14
1
envelope in spatstat
...s (lines), and so have to be treated
differently to normal scalar marks. Hence to create a mcf object with the
appropriate test function for alignment marks, I input 'func' (below)
suggested by Stoyan & Penttinen (1989):
func <- function(m1,m2) { sin(abs(m1-m2))^2}
mcf <- markcorr(points, func, normalise = TRUE, method="density")
So far, so good. However, usinf 'envelope' and 'rlabel' I would like to
check if the pattern in the data is lost when randomly relabeling the mark
for each point. If the test function, 'func' were the usual G(...
2012 Nov 23
1
Spatstat: Mark correlation function
I normally use the following code to create a figure displaying the mark
correlation function for the point pattern process "A":
M<-markcorr(A)
plot(M)
I have now started to use the following code to perform 1000 Monte Carlo
simulations of Complete Spatial Randomness (CSR). It is a Monte Carlo test
based on envelopes of the Mark correlation function obtained from simulated
point patterns, normally used for Ripley's K:
ME<-enve...
2009 Nov 20
1
Spatstat, markcorr, max. radius limited??
Hello,
could please somebody help me. I want to apply the mark correlation function but for radii up to 75 meters (in 75 individual 1m steps). Unfortunately, "There is a sensible default for the values of the argument r at which the mark correlation function kf (r) should be evaluated", so that I do not get results for r > 25m. Can I change something in the function to get the
2009 Nov 23
0
R-help Digest, Vol 81, Issue 23
...rred by aov() help page? (Peng Yu)
> 58. Re: where is lme() that is referred by aov() help page?
> (Duncan Murdoch)
> 59. Re: mac os X: mprobit fails to install (David Winsemius)
> 60. Re: where is lme() that is referred by aov() help page? (Peng Yu)
> 61. Re: Spatstat, markcorr, max. radius limited?? (Rolf Turner)
> 62. Re: mac os X: mprobit fails to install (stephane Luchini)
> 63. Re: where is lme() that is referred by aov() help page?
> (Duncan Murdoch)
> 64. any equivalent SUM IF statement in R (ychu066)
> 65. Re: mac os X: mprobit fails...