[Rnomads-user] Error in system(paste0("wgrib ", grib.file), " -s", intern = TRUE) : 'ignore.stdout' must be TRUE or FALSE

[Daniel Bowman]

Hi Pere,

You have indeed found a bug.  The attached update should fix the
issue.  Please tell me how it works.  If it solves your problem, I'll
release a new version of rNOMADS with the fix included.

How to use the file:

library(rNOMADS)
source("ReadGrib.R")

Best,

Danny

On Thu, Jan 4, 2018 at 5:07 PM, Pere Lopez Brosa <pere.lopez at ub.edu> wrote:
> Hello.
>
> I'm getting an error when trying to perform GribInfo on a downloaded grib
> file:
>
>> GribInfo("E:\\pere\\terbolesa\\test\\wrf-03.2017122800_16_pcp.grib",
> +          file.type = "grib1")
> Error in system(paste0("wgrib ", grib.file), " -s", intern = TRUE) :
>   'ignore.stdout' must be TRUE or FALSE
>
> I tried adding ignore.stdout parameter (and later ignore.stderr and wait
> parameters) to GribInfo code and it seems to work, although I'm new to grib
> files and rNOMADS and I don't know if I'm getting the expected result.
> However, I copy here the modified line:
>
>     inv <- system(paste0("wgrib ", grib.file), " -s", intern = TRUE,
>                   ignore.stdout=FALSE,
>                   ignore.stderr=FALSE,
>                   wait=TRUE)
>
> I tried it with R versions 3.4.2 and 3.4.3, and the latest rNOMADS release.
>
> Have I found a bug or it's just that I'm doing something wrong?
>
> Regards.
>
> Pere López Brosa
>
>
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> o entitat destinatària. Si no sou el destinatari final o la persona
> encarregada de rebre’l, no esteu autoritzat a llegir-lo, retenir-lo,
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> rebut aquest correu electrònic per error, us preguem que n’informeu al
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