From: Sara Mouro <sara_at_gmesintra.com>

Date: Fri 13 Jan 2006 - 00:20:02 EST

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Jan 13 00:28:26 2006

Date: Fri 13 Jan 2006 - 00:20:02 EST

Hello!

I am writing you because I could not plot the confidence envelopes for functions Jest, Jcross, Jdot, Jmulti, and L, using the Spatstat package.

I have already understood how to do that for Kest or Jest, that is: JEnv <- plot(envelope(PPPData, Jest))

Where PPPData is my ppp object.

However, for Jcross I must specify the two marks I want to analyse. That is, usually I would get the Jcross doing: Jc <- Jcross(PPPData,"Aun","Qsu")

For marks "Aun" and "Qsu".

For L function, I can make:

K <- Kest (PPPData, correction="isotropic")
plot (K, r-sqrt(iso/pi)~r)

But I could not understand how to put all that together.

Resuming, I do not understand how can I use the envelope function:

- to plot Jcross (where and how do I specify types/marks ??)

- to plot L (where do I write that I do not want K, but r-sqrt(iso/pi)~r, instead??)
- etc. for similar functions not so simple as Jest, Kest or Gest.

Hope someone can please help me on this. I have already looked at the package's manual, but I could not find any example similar to what I am trying to do.

Best Regards,

Sara Mouro.

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R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Jan 13 00:28:26 2006

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