Re: [R-sig-eco] Morisita horn similarity index

2015-11-28 Thread Jari Oksanen
Vegan::vegdist has actually two related indices: Morisita index (“morisita”) that assumes that input data are integers (individuals, not percentages), and its Horn-Morisita (“horn”) variant that does not have this restriction. However, you should always check the formulae of indices, because the

Re: [R-sig-eco] Morisita horn similarity index

2015-11-27 Thread Zoltan Botta-Dukat
Dear Moses, Vegdist supposes that input data are numbers of individuals not percentages. So, I'm afraid it cannot help to Moses. Cheers, Zoltan 2015.11.27. 13:17 keltezéssel, Roman Luštrik írta: Hi, `vegdist` function of vegan package

Re: [R-sig-eco] Morisita horn similarity index

2015-11-27 Thread Roman Luštrik
Hi, `vegdist` function of vegan package implements the morisita index. Is this what you're looking for? Cheers, Roman On Fri, Nov 27, 2015 at 4:55 AM, moses selebatso wrote: > Hello > I am trying to analyse diet overlap (level of

Re: [R-sig-eco] Morisita horn similarity index

2015-11-27 Thread Martin Weiser
moses selebatso píše v Pá 27. 11. 2015 v 03:55 +: > Hello > I am trying to analyse diet overlap (level of similarity) between two > species. I have diet composition in %. I have tried to find the best tool, > and thought Morisita horn will do, but I cant find the right package for. Is > th

Re: [R-sig-eco] Morisita horn similarity index

2015-11-27 Thread Martin Weiser
moses selebatso píše v Pá 27. 11. 2015 v 03:55 +: > Hello > I am trying to analyse diet overlap (level of similarity) between two > species. I have diet composition in %. I have tried to find the best tool, > and thought Morisita horn will do, but I cant find the right package for. Is > t

[R-sig-eco] Morisita horn similarity index

2015-11-26 Thread moses selebatso
 Hello I am trying to analyse diet overlap (level of similarity) between two species. I have diet composition in %. I have tried to find the best tool, and thought Morisita horn will do, but I cant find the right package for. Is this the best tool? Thank you, Moses [[alternative HTML v