Re: [R-sig-eco] question for the R community : Plot RDA biplot without axis ?

2013-02-26 Thread Jari Oksanen
Sarah, I added argument 'axis.bp' to text.cca and points.cca functions. To upgraded functions can be found in http://vegan.r-forge.r-project.org/ (rev2452), and will probably be included in the next minor release of vegan (2.0-7) scheduled for March, 2013. You can also get the single files fro

Re: [R-sig-eco] question for the R community : Plot RDA biplot without axis ?

2013-02-26 Thread Jari Oksanen
Sarah, We indeed insist on drawing scale of arrows for text() and point() function of cca/rda/capscale. Currently the only way to avoid this is to edit the function. I'll see what to do with this. One piece of advice: do not use col.axis = "white" which will draw white axes. The background of

[R-sig-eco] Clustering AIC derived variable importance scores?

2013-02-26 Thread Chris McOwen
Dear List, I am unsure if this is the right forum to direct my question and if it is not i apologise. My query is more of the theoretical / "can it be done" type than practical. I have modelled time series of fish catch in relation to a suite of environmental variables (SST, ChlA etc) using

[R-sig-eco] Question on adipart randomisation procedure

2013-02-26 Thread Ricardo Solar
Hi mates; I was wondering here if it's possible to apply the "Sample-based", or the H2 randomisation proposed in Crist et al. 2003 using adipart or any similar function. As they describe there, by randomising samples we'd be able to account for sampling design randomness, instead of individuals pl

Re: [R-sig-eco] question for the R community : Plot RDA biplot without axis ?

2013-02-26 Thread Pierre Thiriet
Hi Sarah, Here is Gavin's solution. You have to modify the text.cca function. (at least) two ways: # First #without paranthèses after function name, you get the source codes vegan:::text.cca #then copy/paste this source codes, modify, save, and assign name space #Second # you can modify directl