[R] function censReg in panel data setting

[Igors]

Hello all,

I have a problem estimating Random Effects model using censReg function.

small part of code:

UpC <- censReg(Power ~ Windspeed, left = -Inf, right =
2000,data=PData_In,method="BHHH",nGHQ = 4)

Error in maxNRCompute(fn = logLikAttr, fnOrig = fn, gradOrig = grad,
hessOrig = hess,  : 
  NA in the initial gradient


...then I tried to set starting values myself and here is the error what I
got:

UpC <- censReg(Power ~ Windspeed, left = -Inf, right =
2000,data=PData_In,method="BHHH",nGHQ = 4,start=c(-691,189,5))

Error in names(start) <- c(colnames(xMat), "logSigmaMu", "logSigmaNu") : 
  'names' attribute [4] must be the same length as the vector [3]


How can I solve any of these errors?


Thanks in advance!


Best,
Igors



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