[R-sig-eco] Fwd:

[Rajendra Mohan Panda]

Dear All

I also get following error in some of my models using 'vgam' function.

Error in vgam.match(x[[ii]], all.knots = all.knots, nk = nk[ii]) :
  smoothing variables must have at least 7 unique values

Looking forward to your kind reply on this regard also.

Thanking you

Best Regards
Rajendra M Panda
School of Water Resources
Indian Institute of Technology Kharagpur

---------- Forwarded message ----------
From: Rajendra Mohan Panda <rmp.iit.kgp at gmail.com>
Date: 6 October 2015 at 10:54
Subject:
To: r-sig-ecology at r-project.org


Dear All

I get following error in some of my datasets while using VGAM package.

Error in backsolve(Rmat, rinv) :
  singular matrix in 'backsolve'. First zero in diagonal [1057]

Kindly advise how to tackle this error.

My formula reads like this: vgam(cbind(list of species)~s()+s(),
binomialff(multiple.responses = TRUE,, bred = TRUE), Trace = TRUE, maxit =
TRUE)

Your kind response is highly appreciated.

Best Regards
Rajendra M Panda
School of Water Resources
Indian Institute of Technology Kharagpur

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