[R] Error in eval(expr, envir, enclos)

[William Dunlap]

No, I meant for you to
  (a) show an example that anyone could run and reproduce your problem
  (b) show the output you get when calling traceback() after you ran into
the error.
The lines and error messages you show now are different than the ones you
showed before, but I see you are call mlogit.optim, which I assume comes
from the mlogit pacakge.  help(mlogit.optim) shows
       mlogit.optim(logLik, start, method = c("bfgs", "nr", "bhhh"),
iterlim = 2000,
                    tol = 1E-06, ftol = 1e-08, steptol = 1e-10,
                    print.level = 0, constPar = NULL, ...)

  Arguments:

    logLik: the likelihood function to be maximized,

It looks like your LL is a numeric vector and mlogit.optim expects a
function,
so the original error message may come from there.

By the way, you should stop at the first error message and straighten
things out
before proceeding.  Otherwise all is likely to be garbage.




Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Wed, Nov 4, 2015 at 8:05 AM, Alaa Sindi <alaasindi at gmail.com> wrote:

> Do you mean these lines? Thanks
>
> Prob[i,1]=log(((((sigma)^((1-M[i,1]))))*
> factorial(M[i,1]-1))*(Fmul[i,1])*(Fsum[i,1])*(EV1[i,1])/((EV2[i,1])^(M[i,1])))
> +
> +                                                       LL=LL*Prob[i,1]
> +                                                     }
> Error in HICKSEXP[i, 1] : incorrect number of dimensions
> >
> >
> Start=c(1,1,1,1,1,1,1,1,1,1,1,1)
> >
> >
> >                                                     semsem=mlogit.optim
> ( LL  , Start, method = 'nr', iterlim = 2000, tol = 1E-06, ftol = 1e-08,
> steptol = 1e-10, print.level = 0)
> Error in eval(expr, envir, enclos) : could not find function “LL"
>
>
> On Nov 4, 2015, at 10:56 AM, William Dunlap <wdunlap at tibco.com> wrote:
>
> You need to show more (e.g., the entire function, the output of traceback()
> after the error) to get a definitive answer, but that error message can
> occur
> if you mistakenly use parentheses instead of square brackets when
> subscripting
> LL.  E.g.,
>   > LL <- 11:20
>   > LL[3:4]
>   [1] 13 14
>   > LL(3:4)
>   Error: could not find function "LL"
>
>
> Bill Dunlap
> TIBCO Software
> wdunlap tibco.com
>
> On Wed, Nov 4, 2015 at 7:18 AM, Alaa Sindi <alaasindi at gmail.com> wrote:
>
>> Hi All,
>>
>> I am receiving this error
>>
>> Error in eval(expr, envir, enclos) : could not find function “LL”
>>
>> the following is in a for loop and all the variables are defined and have
>> values.
>>
>> Prob[i,1]=log(((((sigma)^((1-M[i,1]))))*
>> factorial(M[i,1]-1))*(Fmul[i,1])*(Fsum[i,1])*(EV1[i,1])/((EV2[i,1])^(M[i,1])))
>>
>>                                                       LL=LL*Prob[i,1]
>>
>> thanks
>>
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>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> <http://www.r-project.org/posting-guide.html>
>> and provide commented, minimal, self-contained, reproducible code.
>
>
>
>

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