[R-sig-Geo] Error with gstat::predict [SEC=UNCLASSIFIED]

[Roger Bivand]

On Mon, 31 Oct 2016, Edzer Pebesma wrote:

>
>
> On 31/10/16 05:09, Li Jin wrote:
>> Hi All,
>>
>> I need to use the predict{gstat} function in one of my functions for a 
>> R package. I use RStudio to make the package. When I specified 
>> gstat::predict in the function, I received the following error:
>>
>> Error: 'predict' is not an exported object from 'namespace:gstat'
>
> gstat exports 'predict' as an S3method; if it would export 'predict' as
> an object, this would hide the generic in package stats.
>
> The solution to your problem is to not put prepend 'predict' with
> gstat::, but instead rely on S3 method dispatch.

Is it possible that the OP is not importing correctly in the NAMESPACE 
file of the package in question?

Roger

>
> The actual, un-exported function called is gstat:::predict.gstat, but it
> is discouraged to call that directly.
>
>>
>> The session information is:
>>
>>> sessionInfo()
>>
>> R version 3.3.1 (2016-06-21)
>>
>> Platform: x86_64-w64-mingw32/x64 (64-bit)
>>
>> Running under: Windows 7 x64 (build 7601) Service Pack 1
>>
>>
>>
>> locale:
>>
>> [1] LC_COLLATE=English_Australia.1252  LC_CTYPE=English_Australia.1252
>>
>> [3] LC_MONETARY=English_Australia.1252 LC_NUMERIC=C
>>
>> [5] LC_TIME=English_Australia.1252
>>
>>
>>
>> attached base packages:
>>
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>>
>>
>> other attached packages:
>>
>> [1] myrpackage_0.0.0.9000 devtools_1.12.0
>>
>>
>>
>> loaded via a namespace (and not attached):
>>
>> [1] tools_3.3.1   withr_1.0.2   memoise_1.0.0 digest_0.6.10
>>
>> Is this a bug? Any suggestions? Many thanks in advance!
>>
>> Kind regards,
>> Jin
>>
>> Jin Li, PhD
>> Spatial Modeller/Computational Statistician  |  National Earth and Marine Observations
>> Environmental Geoscience Division  |  GEOSCIENCE AUSTRALIA
>> ____________________________________________________________
>> Phone:  +61 2 6249 9899    Fax:  +61 2 6249 9999
>> Email:  Jin.Li at ga.gov.au<mailto:Jin.Li at ga.gov.au>    Web:  www.ga.gov.au<http://www.ga.gov.au/>
>> 101 Jerrabomberra Avenue Symonston ACT
>> GPO Box 378 Canberra ACT 2601 Australia
>> Applying geoscience to Australia’s most important challenges
>>
>>
>>
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>
>

-- 
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
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