StackOverflow2013

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plurals

PO
primarykey
Id
11756335
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2012-08-01T09:25:23.297
FavoriteCount
0
LastActivityDate
2012-08-01T09:25:23.297
LastEditDate
LastEditorUserId
0
OwnerUserId
211116
ParentId
11756095
PostTypeId
2
Score
3
ViewCount
0
LastEditorDisplayName
text
Body
Get all the files and then use <code>grep</code> to find the <code>noe</code> ones and subset them out: <pre><code>> all [1] "Name_Surname_123425_xy.xls" "Name_Surname_1234445_xy.xls" [3] "Name_Surname_12345_noe_xy.xls" "Name_Surname_12345_xy.xls" [5] "Name_Surname_13245_noe_xy.xls" > all[grep("noe_xy.xls",all,invert=TRUE)] [1] "Name_Surname_123425_xy.xls" "Name_Surname_1234445_xy.xls" [3] "Name_Surname_12345_xy.xls" </code></pre> always make sure you check the edge cases where all or none of the files match: <pre><code>> all[grep("xls",all,invert=TRUE)] character(0) > all[grep("fnord",all,invert=TRUE)] [1] "Name_Surname_123425_xy.xls" "Name_Surname_1234445_xy.xls" [3] "Name_Surname_12345_noe_xy.xls" "Name_Surname_12345_xy.xls" [5] "Name_Surname_13245_noe_xy.xls" </code></pre> Using grep with a negative index works except in these edge cases: <pre><code>> all [1] "Name_Surname_123425_xy.xls" "Name_Surname_1234445_xy.xls" [3] "Name_Surname_12345_noe_xy.xls" "Name_Surname_12345_xy.xls" [5] "Name_Surname_13245_noe_xy.xls" > all[-grep("noe_xy.xls",all)] # strip out the noe_xy.xls files [1] "Name_Surname_123425_xy.xls" "Name_Surname_1234445_xy.xls" [3] "Name_Surname_12345_xy.xls" # works. Now strip out any xls files (should leave nothing) > all[-grep("xls",all)] character(0) # yup, that works too. Now strip out 'fnord' files, shouldn't remove anything: > all[-grep("fnord",all)] character(0) </code></pre> Epic fail! Reason is left as an exercise to the reader.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POR: Create a file list without a specific string
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USSpacedman
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POR: Create a file list without a specific string
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
CommentsPostId
1. COWorks! Thanks for the fast response.
 singulars
 PostPostId
 PO
 UserUserId
 USMarkus

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