Hello,

I'm running version R x64 v2.12.2 on a 64bit windows 7 PC.  I have two data vectors, x and y, and try to run archmCopulaFit.  Most of the copulas produce errors.  Can you tell me what the errors mean and if possible, how I can set archmCopulaFit options to make them run?  I see in the documentation that there are "arguments passed to the optimization function in use,  'nlminb'", however, it's not clear to me how to set them.

Thanks.

Copulas 2, 4,7,8,11,12,14,15,18,19,20,21,22 have the following error:

fit1 = archmCopulaFit(x,y,type="2")
Error in if (alpha < range[1] | alpha > range[2]) { :
  missing value where TRUE/FALSE needed

Copulas 3 has the following error:

fit1 = archmCopulaFit(x,y,type="3")
Error in if (alpha < range[1] | alpha > range[2]) { :
  missing value where TRUE/FALSE needed
In addition: Warning messages:
1: In log(darchmCopula(u = U, v = V, alpha = x, type = type)) :
  NaNs produced
2: In log(darchmCopula(u = U, v = V, alpha = x, type = type)) :
  NaNs produced

Copula 10:

fit1 = archmCopulaFit(x,y,type="10")
Error in if (alpha < range[1] | alpha > range[2]) { :
  missing value where TRUE/FALSE needed
In addition: Warning message:
In log(darchmCopula(u = U, v = V, alpha = x, type = type)) : NaNs produced

Copulas 1,5,9,13,16,17 produce estimates.

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