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POvalues not being copied to the next (local) environment?
primarykey
Id
3574858
data
AcceptedAnswerId
3575135
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-08-26T12:03:38.670
FavoriteCount
0
LastActivityDate
2010-08-27T10:10:11.053
LastEditDate
LastEditorUserId
0
OwnerUserId
322912
ParentId
0
PostTypeId
1
Score
1
ViewCount
342
LastEditorDisplayName
text
Body
Consider this output from <code>browser()</code> that is located inside <code>calcDistance</code>: <pre><code>Called from: calcDistance(object = rst, xy = xy[[i]][j, ], effect.distance = effect.distance) Browse[1]> ls.str() effect.distance : num 236 object : Formal class 'RasterLayer' [package "raster"] with 12 slots xy : Named num [1:2] -101.8 35.5 Browse[1]> debugging in: xyValues(object = object, xy = xy, buffer = effect.distance) debug: standardGeneric("xyValues") Browse[2]> ls.str() object : Formal class 'RasterLayer' [package "raster"] with 12 slots xy : Named num [1:2] -101.8 35.5 </code></pre> Functions are as follows: simulationRun > createDistRaster > calcDistance > raster::xyValues. In the above output, you only see the last two. <code>xyValues</code> is from raster package. First paragraph of code shows that three objects are present: <code>effect.distance</code>, <code>object</code>, <code>xy</code>. In second paragraph, we descend into xyValues by calling debug(xyValues). In third paragraph we can see that <code>effect.distance</code> is missing. My question is: Even though <code>object</code> and <code>xy</code> seem to be copied to the <code>xyValues</code> environment just fine, <code>effect.distance</code> is not. How could this be explained? My sessionInfo() <pre><code>R version 2.11.1 (2010-05-31) i386-pc-mingw32 locale: [1] LC_COLLATE=Slovenian_Slovenia.1250 LC_CTYPE=Slovenian_Slovenia.1250 [3] LC_MONETARY=Slovenian_Slovenia.1250 LC_NUMERIC=C [5] LC_TIME=Slovenian_Slovenia.1250 attached base packages: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] raster_1.3-11 foreach_1.3.0 codetools_0.2-2 iterators_1.0.3 [5] Hmisc_3.8-2 survival_2.35-8 spam_0.22-0 splancs_2.01-27 [9] sp_0.9-66 spatstat_1.20-2 deldir_0.0-12 mgcv_1.6-2 loaded via a namespace (and not attached): [1] cluster_1.12.3 grid_2.11.1 lattice_0.18-8 Matrix_0.999375-39 [5] nlme_3.1-96 tools_2.11.1 </code></pre>
Tags
<r><function><environment>
Title
values not being copied to the next (local) environment?
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USRoman Luštrik
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
2. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POvalues not being copied to the next (local) environment?
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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