[R] package MonteCarlo error: object 'packages' not found

[Bert Gunter]

This looks like the sort of thing that you should ask the package
maintainer (?maintainer).

Cheers,
Bert



Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Thu, Feb 15, 2018 at 11:39 AM, john polo <jpolo at mail.usf.edu> wrote:

> R-users,
>
> I can't tell what's causing the following error. The vignette does not
> make a reference to a "packages" option or parameter.
>
> > library(MonteCarlo)
> Loading required package: abind
> Loading required package: codetools
> Loading required package: rlecuyer
> Loading required package: snow
> Loading required package: snowfall
>
> > infest_kud_fun<-function(x,A,B){
> +   equation1=exp(A-(B*x))
> +   return(list("equation1"=equation1))
> + }
>
>
> > x_grid<-c(0.5,10) #distances kudzu could grow
> > A_grid<-rnorm(1000) #probabilities
> > B_grid<- rnorm(1000) #probabilities
>
>
> > #put parameters in a list
> > param_list_kud=list("x"=x_grid, "A"=A_grid, "B"=B_grid)
>
> > #run MC simulation
> > MC_result_kud<-MonteCarlo(func=infest_kud_fun,nrep=10000,
> param_list=param_list_kud)
> Error in MonteCarlo(func = infest_kud_fun, nrep = 10000, param_list =
> param_list_kud) :
>   object 'packages' not found
>
> > sessionInfo()
> R version 3.4.3 (2017-11-30)
> Platform: i386-w64-mingw32/i386 (32-bit)
> Running under: Windows 7 x64 (build 7601) Service Pack 1
>
> Matrix products: default
>
> locale:
> [1] LC_COLLATE=English_United States.1252
> [2] LC_CTYPE=English_United States.1252
> [3] LC_MONETARY=English_United States.1252
> [4] LC_NUMERIC=C
> [5] LC_TIME=English_United States.1252
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets methods   base
>
> other attached packages:
> [1] MonteCarlo_1.0.2  snowfall_1.84-6.1 snow_0.4-2 rlecuyer_0.3-4
> [5] codetools_0.2-15  abind_1.4-5
>
>
> best,
>
> john
>
> --
> Enlightenment is ego's ultimate disappointment.
> -Chogyam Trungpa
>
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