Hello, I have used the univariate Ripley K function in R, but does anyone know if there is a bivariate function built in? I have two species that I am dealing with. Also, how might I add error bars into the graphs (univariate and/or bivariate)? Thank you, Karin Leiderman k_leiderman at hotmail.com Graduate Student/Research Assistant Department of Mathematics Univesity of New Mexico _________________________________________________________________ Get 10MB of e-mail storage! Sign up for Hotmail Extra Storage.
Bivariate Ripley K function
3 messages · Karin Leiderman, Roger D. Peng, Barry Rowlingson
I believe the `splancs' package from CRAN has a bivariate K function. For error bars you'll probably have to use Monte Carlo methods. `splancs' has some tools for that. -roger
Karin Leiderman wrote:
Hello, I have used the univariate Ripley K function in R, but does anyone know if there is a bivariate function built in? I have two species that I am dealing with. Also, how might I add error bars into the graphs (univariate and/or bivariate)? Thank you, Karin Leiderman k_leiderman at hotmail.com Graduate Student/Research Assistant Department of Mathematics Univesity of New Mexico
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Roger D. Peng wrote:
I believe the `splancs' package from CRAN has a bivariate K function. For error bars you'll probably have to use Monte Carlo methods. `splancs' has some tools for that.
See also 'spatstat' for Kmulti and Kcross. Since R doesn't have a univariate K-function in the base or recommended packages I'm wondering which package the original poster got univariate K-function from. I suspect their friendly sysop installed splancs or spatstat. Baz