[R] vglm

[Dejian Zhao]

 My previous expression is ok. But I agree using argument 'data' will be 
a better choice especially when there are many variables from the object 
specified by 'data'.

On 2010-9-1 16:23, Gavin Simpson wrote:
> On Wed, 2010-09-01 at 11:05 +0800, Dejian Zhao wrote:
>    
>> try
>> fit=vglm(mydata[,"Loss"]~1,pareto1(location=alpha),trace=TRUE,crit="c")
>>      
> No, please don't. That is not a good example of formula use in R.
> Several responders have already pointed out that the 'R' way of doing
> this would be to use a data argument to tell vglm where to find the
> variables mentioned in the formula. So your example would become:
>
> fit<- vglm(Loss ~ 1, data = mydata, family = pareto1(location = alpha),
>              trace = TRUE, crit = "coef")
>
> HTH
>
> G
>
>    
>> On 2010-9-1 3:20, choonhong ang wrote:
>>      
>>> Hi All,
>>>
>>> could anybody help me to understand what is this error means ?
>>>
>>>
>>> mydata=read.table("C:/Documents and
>>> Settings/angieb/Desktop/CommercialGL/cl_ilf_claimdata.csv",header=TRUE,sep=",")
>>>
>>>        
>>>> names(mydata)
>>>>
>>>>          
>>> [1] "ILFTable"    "liabLimit"   "AnnAggLimit" "DedAmt"      "Loss"
>>> "TIL"
>>>
>>>        
>>>> fit=vglm(Loss~1,pareto1(location=alpha),trace=TRUE,crit="c")
>>>>
>>>>          
>>> Error in eval(expr, envir, enclos) : object "Loss" not found
>>>
>>> 	[[alternative HTML version deleted]]
>>>
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>>>
>>>        
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>      
>