[datatable-help] unique() not working. Is it me or the code?

[Farrel Buchinsky]

Look what happens when I execute the example. Any idea why I am getting the
error.

> DT <- data.table(A = rep(1:3, each=4), B = rep(1:4, each=3), C = rep(1:2,
6), key = "A,B")
> duplicated(DT)
 [1] FALSE  TRUE  TRUE FALSE FALSE  TRUE FALSE  TRUE FALSE FALSE  TRUE  TRUE
> unique(DT)
Error in .Call("Cwhichwrapper", x, bool) :
  "Cwhichwrapper" not resolved from current namespace (data.table)

Here is my session info

Running from within RStudio Version 0.99.179

R version 3.1.2 (2014-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United
States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C

[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
 [1] knitr_1.9         zoo_1.7-11        RGoogleDocs_0.7-0 reshape2_1.4.1
 [5] ggplot2_1.0.0     stringi_0.4-1     stringr_0.6.2     car_2.0-22
 [9] plyr_1.8.1        data.table_1.9.5  lubridate_1.3.3   RODBC_1.3-10

loaded via a namespace (and not attached):
 [1] bitops_1.0-6     chron_2.3-45     colorspace_1.2-4 digest_0.6.8
 [5] evaluate_0.5.5   formatR_1.0      grid_3.1.2       gtable_0.1.2
 [9] lattice_0.20-29  MASS_7.3-35      memoise_0.2.1    munsell_0.4.2
[13] nnet_7.3-8       proto_0.3-10     Rcpp_0.11.4      RCurl_1.95-4.5
[17] scales_0.2.4     tools_3.1.2      XML_3.98-1.1


Thanks a lot. Farrel


Farrel J. Buchinsky MBChB, BSc(HONS)MED, FACS
(412) 567-7870 [mobile, work, home]
Director, Pediatric Otolaryngology: Allegheny General Hospital
Director, Respiratory Papillomatosis Program: Allegheny-Singer Research
Institute
320 E. North Ave.
Pittsburgh, PA 15212
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