Dear all, I am performing a CCA using vegan package, function cca. Data loaded are fine (presence-absence data) but when using cca function it seems some constraining variables are not taken into account. While asking for the summary of the CCA: - they appear in "call:cca(formula = etc.)". - but their scores are not shown in "Biplot scores for constraining variables" - and they cannot be plotted. If they are considered alone i.e. without other constraining variables in the CCA, their scores appear and they can be plotted. How can it be? May someone help me to be sure they are taken into account in the CCA with all other constraining variables, and to get their scores? Or to understand why they are disregarded and others taken into account? Regards, Lise.
CCA no scores for some constraining variables
2 messages · Paresys, Lise, Steven Wolf
1 day later
This seems like the ideal case for a MWE. If we can't reproduce your error, we can't help diagnose it! Steve --- Steven Wolf Research Associate CREATE for STEM Institute Michigan State University
On Feb 1, 2014, at 6:44 AM, "Paresys, Lise" <lise.paresys at wur.nl> wrote: Dear all, I am performing a CCA using vegan package, function cca. Data loaded are fine (presence-absence data) but when using cca function it seems some constraining variables are not taken into account. While asking for the summary of the CCA: - they appear in "call:cca(formula = etc.)". - but their scores are not shown in "Biplot scores for constraining variables" - and they cannot be plotted. If they are considered alone i.e. without other constraining variables in the CCA, their scores appear and they can be plotted. How can it be? May someone help me to be sure they are taken into account in the CCA with all other constraining variables, and to get their scores? Or to understand why they are disregarded and others taken into account? Regards, Lise.