Re: [R] procrustes results affected by order of sites in input file

On Thu, 2010-12-02 at 11:19 -0600, Christine Dolph wrote: Hi, Thanks very much for your response. Thanks Christy, Apologies if I sounded off-hand or dismissive yesterday. It was a busy day, and as your mail lacked a reproducible example nor the code you ran, I wanted to deal with the

Re: [R] procrustes results affected by order of sites in input file

On Fri, 2010-12-03 at 09:58 +, Gavin Simpson wrote: On Thu, 2010-12-02 at 11:19 -0600, Christine Dolph wrote: Hi, Thanks very much for your response. Thanks Christy, Apologies if I sounded off-hand or dismissive yesterday. It was a busy day, and as your mail lacked a reproducible

Re: [R] procrustes results affected by order of sites in input file

On Wed, 2010-12-01 at 14:19 -0600, Christine Dolph wrote: Dear All, I am using a Procrustes analysis to compare two NMDS ordinations for the same set of sites. One ordination is based on fish data, the other is based on invertebrate data. Ordinations were derived using metaMDS() from the

Re: [R] procrustes results affected by order of sites in input file

Hi, Thanks very much for your response. Unfortunately, using the set.seed() call does not seem to solve my problem. If I do not use set.seed(), I do indeed get some small differences in protest() results due to the effect of random starts. But with my sites in a given order in the input files,

[R] procrustes results affected by order of sites in input file

Dear All, I am using a Procrustes analysis to compare two NMDS ordinations for the same set of sites. One ordination is based on fish data, the other is based on invertebrate data. Ordinations were derived using metaMDS() from the {vegan} library as follows: fish.mds-metaMDS(fish.data,