
	Hello!

	I am writing you because I need to 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".

	And for L function, I know I do:
	K <- Kest (PPPData, correction="isotropic")
	plot (K, r-sqrt(iso/pi)~r)


	But I could not understand how to put all that together, that is how
should I write 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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