Re: [R-sig-eco] Minimum Number of Observations for pcaCoDa?

2014-11-21 Thread Jari Oksanen
, Jari Oksanen From: r-sig-ecology-boun...@r-project.org r-sig-ecology-boun...@r-project.org on behalf of Rich Shepard rshep...@appl-ecosys.com Sent: 21 November 2014 00:08 To: r-sig-ecology@r-project.org Subject: [R-sig-eco] Minimum Number of Observations

[R-sig-eco] Minimum Number of Observations for pcaCoDa?

2014-11-20 Thread Rich Shepard
The compositional data sets have few observations: 4 to 7 rows each, but there are 5 parts (columns) for each row. I tried to use the robCompositions function pcaCoDa(). There was an error and warning generated: ( winters.biplot - pcaCoDa(winters.coda) ) Error in princomp.default(xilr,