Last updated on 2017-06-23 20:48:55.
| Flavor | Version | Tinstall | Tcheck | Ttotal | Status | Flags |
|---|---|---|---|---|---|---|
| r-devel-linux-x86_64-debian-clang | 0.7-1 | 10.48 | 33.78 | 44.26 | NOTE | |
| r-devel-linux-x86_64-debian-gcc | 0.7-1 | 11.49 | 33.16 | 44.65 | NOTE | |
| r-devel-linux-x86_64-fedora-clang | 0.7-1 | 88.30 | NOTE | |||
| r-devel-linux-x86_64-fedora-gcc | 0.7-1 | 79.49 | NOTE | |||
| r-devel-windows-ix86+x86_64 | 0.7-1 | 40.00 | 102.00 | 142.00 | NOTE | |
| r-patched-linux-x86_64 | 0.7-1 | 9.37 | 32.65 | 42.01 | NOTE | |
| r-patched-solaris-sparc | 0.7-1 | 451.80 | ERROR | |||
| r-patched-solaris-x86 | 0.7-1 | 98.50 | NOTE | |||
| r-release-linux-x86_64 | 0.7-1 | 9.45 | 33.64 | 43.09 | NOTE | |
| r-release-windows-ix86+x86_64 | 0.7-1 | 44.00 | 91.00 | 135.00 | NOTE | |
| r-release-osx-x86_64 | 0.7-1 | ERROR | ||||
| r-oldrel-windows-ix86+x86_64 | 0.7-1 | 63.00 | 105.00 | 168.00 | NOTE | |
| r-oldrel-osx-x86_64 | 0.7-1 | NOTE |
Version: 0.7-1
Check: package dependencies
Result: NOTE
Packages suggested but not available for checking:
‘Rcampdf’ ‘tm.lexicon.GeneralInquirer’
Flavors: r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-patched-linux-x86_64, r-release-linux-x86_64
Version: 0.7-1
Check: package dependencies
Result: NOTE
Packages suggested but not available for checking:
'Rcampdf' 'Rpoppler' 'tm.lexicon.GeneralInquirer'
Flavors: r-devel-windows-ix86+x86_64, r-patched-solaris-sparc, r-patched-solaris-x86, r-release-windows-ix86+x86_64, r-oldrel-windows-ix86+x86_64, r-oldrel-osx-x86_64
Version: 0.7-1
Check: Rd cross-references
Result: NOTE
Package unavailable to check Rd xrefs: 'Rpoppler'
Flavors: r-devel-windows-ix86+x86_64, r-patched-solaris-sparc, r-patched-solaris-x86, r-release-windows-ix86+x86_64, r-oldrel-windows-ix86+x86_64, r-oldrel-osx-x86_64
Version: 0.7-1
Check: examples
Result: ERROR
Running examples in ‘tm-Ex.R’ failed
The error most likely occurred in:
> ### Name: readPDF
> ### Title: Read In a PDF Document
> ### Aliases: readPDF
> ### Keywords: file
>
> ### ** Examples
>
> uri <- sprintf("file://%s", system.file(file.path("doc", "tm.pdf"), package = "tm"))
> if(all(file.exists(Sys.which(c("pdfinfo", "pdftotext"))))) {
+ pdf <- readPDF(control = list(text = "-layout"))(elem = list(uri = uri),
+ language = "en",
+ id = "id1")
+ content(pdf)[1:13]
+ }
[1] " Introduction to the tm Package"
[2] " Text Mining in R"
[3] " Ingo Feinerer"
[4] " March 2, 2017"
[5] ""
[6] ""
[7] "Introduction"
[8] "This vignette gives a short introduction to text mining in R utilizing the text mining framework provided by"
[9] "the tm package. We present methods for data import, corpus handling, preprocessing, metadata management,"
[10] "and creation of term-document matrices. Our focus is on the main aspects of getting started with text mining"
[11] "in R--an in-depth description of the text mining infrastructure offered by tm was published in the Journal of"
[12] "Statistical Software (Feinerer et al., 2008). An introductory article on text mining in R was published in R"
[13] "News (Feinerer, 2008)."
> VCorpus(URISource(uri, mode = ""),
+ readerControl = list(reader = readPDF(engine = "ghostscript")))
Error in pdf_text(uri) : Ghostscript failed, with output:
Introduction to the tm Package
Text Mining in R
Ingo Feinerer
March 2, 2017
Introduction
This vignette gives a short introduction to text mining in R utilizing the text mining framework provided by
the tm package. We present methods for data import, corpus handling, preprocessing, metadata management,
and creation of term-document matrices. Our focus is on the main aspects of getting started with text mining
in R--an in-depth description of the text mining infrastructure offered by tm was published in the Journal of
Statistical Software (Feinerer et al., 2008). An introductory article on text mining in R was published in R
News (Feinerer, 2008).
Data Import
The main structure for managing documents in tm is a so-called Corpus, representing a collection of text
documents. A corpus is an abstract concept, and there can exist several implementations in parallel. The
default implementation is the so-called VCorpus (short for Volatile Corpus)
Calls: VCorpus -> mapply -> <Anonymous> -> <Anonymous> -> pdf_text
Execution halted
Flavor: r-patched-solaris-sparc
Version: 0.7-1
Check: package dependencies
Result: NOTE
Packages suggested but not available for checking:
‘Rcampdf’ ‘Rgraphviz’ ‘Rpoppler’ ‘tm.lexicon.GeneralInquirer’
Flavor: r-release-osx-x86_64
Version: 0.7-1
Check: Rd cross-references
Result: NOTE
Packages unavailable to check Rd xrefs: ‘graph’, ‘Rpoppler’
Flavor: r-release-osx-x86_64
Version: 0.7-1
Check: examples
Result: ERROR
Running examples in ‘tm-Ex.R’ failed
The error most likely occurred in:
> ### Name: readPDF
> ### Title: Read In a PDF Document
> ### Aliases: readPDF
> ### Keywords: file
>
> ### ** Examples
>
> uri <- sprintf("file://%s", system.file(file.path("doc", "tm.pdf"), package = "tm"))
> if(all(file.exists(Sys.which(c("pdfinfo", "pdftotext"))))) {
+ pdf <- readPDF(control = list(text = "-layout"))(elem = list(uri = uri),
+ language = "en",
+ id = "id1")
+ content(pdf)[1:13]
+ }
> VCorpus(URISource(uri, mode = ""),
+ readerControl = list(reader = readPDF(engine = "ghostscript")))
sh: : command not found
Error in system2(gs_cmd, c("-dNODISPLAY -q", sprintf("-sFile=%s", shQuote(file)), :
error in running command
Calls: VCorpus ... mapply -> <Anonymous> -> <Anonymous> -> pdf_info -> system2
Execution halted
Flavor: r-release-osx-x86_64