Hi Roger and colleagues,

Everithing worked fine!

Remembering:

I am working under VISTA 64bits, running grass65 that I compiled yesterday
under MSYS.
I installed the alpha version of R 2.9.0. But I had several issues regarding
Security on Vista.
I tryed several things, like install R 2.9.0 (also I tryed R 2.8.1), change
the priority of security allowing R run As Administrator, and after
installing the packages (sp, maptools, spatstat, adehabitat, rdgal and
spgrass6), start MSYS>GRASS>R and require spgrass6. BUT I got error message:

Loading required package: spgrass6
Warning message:
In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return
= TRUE,  :
  there is no package called 'spgrass6'

But if I start R from GRASS, and I install the packages after start R from
GRASS/MSYS everything works fine. So I suggest
(1) start MSYS
(2) start GRASS
(3) call R from GRASS/MSYS ( /c/Progra~2/R/R-2.9.0alpha/bin/Rgui.exe& )
(4) install the packages.

Thanks Roger, issue solved!

milton
On Sun, Mar 29, 2009 at 11:04 AM, Roger Bivand <Roger.Bivand@nhh.no> wrote:

> On Sun, 29 Mar 2009, milton ruser wrote:
>
> Checking the result on the readRAST6, I noticed that
>> the number of bytes are 2, and I need 4 bits to store
>> values greather than 32565, I suppose.
>> --------------
>>
>>> mapa <- readRAST6(varint, cat=FALSE)
>>>
>> Creating BIL support files...
>> Header File =
>>
>> C:/Data/Tibagi/vegPR_probio_proatlan_abr2009/tibagi_Probio_grass_sdb_apr2009/newLocation/PERMANENT/.tmp/uso_tibagi_fundo_soflor_ero30m_dila030m_mata_clump.hdr
>> World File =
>>
>> C:/Data/Tibagi/vegPR_probio_proatlan_abr2009/tibagi_Probio_grass_sdb_apr2009/newLocation/PERMANENT/.tmp/uso_tibagi_fundo_soflor_ero30m_dila030m_mata_clump.wld
>> Exporting raster as integer values (bytes=2)
>> Using the current region settings...
>> --------------------
>> But how can I chance the number of bytes, if it is not an
>> argument on readRAST6?
>>
>
> Thanks for including your sessionInfo() in the preceding mail. If you are
> still using 0.5-10, you have no choice but to cast the data to floating
> point using r.mapcalc (add 0.0 should do it). There have been many changes
> in readRAST6() since that version, for example to use a GRASS GDAL plugin if
> available, and to use GDAL to read and write GTiff temporary files. The
> older route using r.out.bin only offers 2-byte integers, so was a reason for
> making more formats available.
>
> So the answer in general is to update sp, spgrass6 and rgdal if you can.
> Since you in addition on Windows, and probably using the Native Windows
> version, until a new release you will hit a snag that more recent GRASS
> r.out.gdal have a -c flag which is not in your release - here you can wait
> for the next release, and use the trick of casting to floating point until
> then.
>
> Roger
>
>   Best wishes
>>
>> miltinho
>>
>>
>> On Sun, Mar 29, 2009 at 12:43 AM, milton ruser <milton.ruser@gmail.com
>> >wrote:
>>
>> Hi there,
>>>
>>> I have a set of maps on GRASS 6.5 and I need to compute some basic stats
>>> on R 2.7.1. For some maps I get the desired results, but for other I am
>>> getting different values. My raster are integer values >= 1 (with some
>>> NAs
>>> where not mapped).
>>>
>>> I start R from GRASS session without problem, and can read the rasters
>>> on R:
>>>
>>> require(spgrass6)
>>> varint<-"uso_tibagi_fundo_soflor_ero30m_dila030m_mata_clump_AreaHA"
>>> mapa <- readRAST6(varint, cat=FALSE)
>>> mapa.valores<-mapa@data[1]
>>> mapa.valores<-mapa.valores[!is.na(mapa.valores)]
>>> quantile(mapa.valores, probs=c(0.20,0.40,0.60,0.80))
>>> summary(mapa.valores)
>>> rm(mapa, mapa.valores,varint)
>>> But for one of my map I get different range of value between R and GRASS
>>> ON GRASS - r.univar
>>> n: 8336636
>>> minimum: 1
>>> maximum: 303396
>>> range: 303395
>>> mean: 125949
>>>
>>> ON R
>>>
>>>> summary(mapa@data[1])
>>>>
>>>  uso_tibagi_fundo_soflor_dila030m_clump_mata_limpa_AreaHA
>>>  Min.   :  -24284
>>>  1st Qu.:  -24284
>>>  Median :      31
>>>  Mean   :   -6551
>>>  3rd Qu.:    2225
>>>  Max.   :   27846
>>>  NA's   :59217475
>>>
>>> -----> sessionInfo()
>>> R version 2.7.1 (2008-06-23)
>>> i386-pc-mingw32
>>> locale:
>>>
>>>
>>> LC_COLLATE=English_Canada.1252;LC_CTYPE=English_Canada.1252;LC_MONETARY=English_Canada.1252;LC_NUMERIC=C;LC_TIME=English_Canada.1252
>>> attached base packages:
>>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>> other attached packages:
>>> [1] spgrass6_0.5-10 rgdal_0.5-25    sp_0.9-26
>>> loaded via a namespace (and not attached):
>>> [1] grid_2.7.1     lattice_0.17-8
>>> Any help are welcome.
>>>
>>> Regards
>>>
>>> miltinho
>>> Toronto, CA
>>>
>>>
>>>
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>>
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>>
>>
> --
> Roger Bivand
> Economic Geography Section, Department of Economics, Norwegian School of
> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
> e-mail: Roger.Bivand@nhh.no
>
>

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