[R-sig-Geo] spTransform problem

Thu Jul 22 21:08:19 CEST 2010

All: Sorry for clogging everyones mailbox.  Mathieu is absolutely right.

library(rgdal)

fixed everything

On Thu, Jul 22, 2010 at 2:04 PM, Mathieu Basille
<basille at ase-research.org> wrote:
> Hi Stephen,
>
> Did you *actually* try to load rgdal in that R session? It doesn't seem
> to appear in the list of attached packages...
>
> HTH,
> Mathieu.
>
>
>
> Le 2010-07-22 14:55, stephen sefick a écrit :
>> I am having problems with spTransform in packages rgdal.  If this is
>> not enought information please let me know and I will send whatever
>> you need.  It doesn't seem like it is avaliable.
>>
>> library(rgdal)
>> w <- (new("SpatialPoints"
>>     , coords = structure(c(33.31665, 33.31834, 33.3239, 33.37435, 33.36018,
>> 33.23301, 33.23423, 33.17796, 33.18121, 33.1949, 33.31868, 33.30408,
>> 33.29747, 33.17787, 33.29818, 33.29995, 33.22684, 35.1132, 35.17292,
>> 35.17181, 35.06247, 35.11168, 35.13462, 33.29927, 33.29815, 33.29678,
>> 33.22417, 35.18823, 35.18498, 35.11643, 35.01896, 32.50986, 32.49736,
>> 33.31731, 33.3194, 33.3244, 33.37333, 33.36077, 33.2325, 33.23349,
>> 33.1781, 33.18051, 33.19357, 33.31922, 33.30454, 33.29836, 33.17613,
>> 33.2981, 33.36369, 33.30074, 33.22576, 35.1132, 35.17424, 35.17208,
>> 35.06282, 35.11102, 35.13354, 33.30036, 33.29896, 33.29789, 33.22353,
>> 35.18748, 35.1838, 35.11509, 35.01986, 32.51054, 32.49748, -81.59802,
>> -81.59618, -81.60159, -81.55044, -81.55657, -81.6235, -81.63911,
>> -81.56433, -81.56165, -81.57855, -81.57896, -81.62487, -81.63039,
>> -81.58159, -81.62553, -81.58714, -81.63564, -79.33718, -79.1805,
>> -79.22391, -79.30669, -79.35294, -79.34676, -81.66629, -81.67698,
>> -81.68295, -81.5105, -79.0738, -79.09837, -79.32681, -79.51664,
>> -84.64703, -84.70618, -81.59759, -81.59619, -81.60101, -81.54981,
>> -81.55763, -81.62424, -81.63809, -81.5657, -81.56335, -81.5788,
>> -81.58011, -81.6263, -81.62959, -81.58174, -81.62629, -81.55806,
>> -81.5868, -81.6357, -79.33718, -79.18026, -79.23305, -79.30483,
>> -79.35168, -79.34534, -81.66618, -81.6779, -81.68343, -81.50894,
>> -79.07469, -79.09892, -79.32548, -79.51553, -84.64841, -84.70769
>> ), .Dim = c(67L, 2L), .Dimnames = list(NULL, c("lat", "long")))
>>     , bbox = structure(c(32.49736, -84.70769, 35.18823, -79.0738), .Dim = c(2L,
>> 2L), .Dimnames = list(c("lat", "long"), c("min", "max")))
>>     , proj4string = new("CRS"
>>     , projargs = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
>> )
>> ))
>>
>>
>> str(w)
>> Formal class 'SpatialPoints' [package "sp"] with 3 slots
>>   ..@ coords     : num [1:67, 1:2] 33.3 33.3 33.3 33.4 33.4 ...
>>   .. ..- attr(*, "dimnames")=List of 2
>>   .. .. ..$ : NULL
>>   .. .. ..$ : chr [1:2] "lat" "long"
>>   ..@ bbox       : num [1:2, 1:2] 32.5 -84.7 35.2 -79.1
>>   .. ..- attr(*, "dimnames")=List of 2
>>   .. .. ..$ : chr [1:2] "lat" "long"
>>   .. .. ..$ : chr [1:2] "min" "max"
>>   ..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slots
>>   .. .. ..@ projargs: chr "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
>>
>>
>> w.utm <- spTransform(y, CRS=CRS("+proj=utm +zone=17 +ellps=GRS80
>> +datum=NAD83 +units=m +no_defs"))
>> Error: could not find function "spTransform"
>>
>> sessionInfo()
>> R version 2.11.1 (2010-05-31)
>> x86_64-unknown-linux-gnu
>>
>> locale:
>>  [1] LC_CTYPE=en_US.utf8       LC_NUMERIC=C
>>  [3] LC_TIME=en_US.utf8        LC_COLLATE=en_US.utf8
>>  [5] LC_MONETARY=C             LC_MESSAGES=en_US.utf8
>>  [7] LC_PAPER=en_US.utf8       LC_NAME=C
>>  [9] LC_ADDRESS=C              LC_TELEPHONE=C
>> [11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
>>
>> attached base packages:
>> [1] graphics  grDevices utils     datasets  stats     grid      methods
>> [8] base
>>
>> other attached packages:
>>  [1] gpclib_1.5-1            RPostgreSQL_0.1-6       DBI_0.2-5
>>  [4] StreamMetabolism_0.03-3 maptools_0.7-34         lattice_0.18-8
>>  [7] sp_0.9-65               foreign_0.8-40          chron_2.3-35
>> [10] zoo_1.6-4               vegan_1.17-3            ggplot2_0.8.8
>> [13] proto_0.3-8             reshape_0.8.3           plyr_1.0.3
>>
>> loaded via a namespace (and not attached):
>> [1] tools_2.11.1
>>
>>
>
> --
>
> ~$ whoami
> Mathieu Basille, Post-Doc
>
> ~$ locate
> Laboratoire d'Écologie Comportementale et de Conservation de la Faune
> + Centre d'Étude de la Forêt
> Département de Biologie
> Université Laval, Québec
>
> ~$ info
> http://ase-research.org/basille
>
> ~$ fortune
> ``If you can't win by reason, go for volume.''
> Calvin, by Bill Watterson.
>

-- 
Stephen Sefick
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Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

                                -K. Mullis