[datatable-help] Ordering of filter expressions

[Jeff Zemla]

This can be fixed in 1.9.4 by doing:

options(datatable.auto.index=FALSE)

though I recommend upgrading to 1.9.5 instead


On Mon, Dec 15, 2014 at 3:38 PM, Arunkumar Srinivasan <aragorn168b at gmail.com
> wrote:
>
> 1.9.5 is the current devel version. Bugs from 1.9.4 are likely to be fixed
> there.
>
> On Mon, Dec 15, 2014 at 9:30 PM, Bacou, Melanie <mel at mbacou.com> wrote:
>>
>>  I can reproduce in 1.9.4:
>>
>> > library(data.table)
>> data.table 1.9.4  For help type: ?data.table
>> *** NB: by=.EACHI is now explicit. See README to restore previous
>> behaviour.
>> Warning message:
>> package 'data.table' was built under R version 3.1.1
>> > d <- data.table(a=1:2, b=1:2)
>> > d[round(a) == a]
>>    a b
>> 1: 1 1
>> 2: 2 2
>> > d[a == round(a)]
>> Error in eval(expr, envir, enclos) : object 'a' not found
>>
>> > versionInfo()
>> Error: could not find function "versionInfo"
>> > sessionInfo()
>> R version 3.1.0 (2014-04-10)
>> Platform: x86_64-w64-mingw32/x64 (64-bit)
>>
>> locale:
>> [1] LC_COLLATE=English_United States.1252
>> [2] LC_CTYPE=English_United States.1252
>> [3] LC_MONETARY=English_United States.1252
>> [4] LC_NUMERIC=C
>> [5] LC_TIME=English_United States.1252
>>
>> attached base packages:
>> [1] stats     graphics  utils     datasets  grDevices methods   base
>>
>> other attached packages:
>> [1] data.table_1.9.4 rj_1.1.3-1
>>
>> loaded via a namespace (and not attached):
>> [1] chron_2.3-45  plyr_1.8.1    Rcpp_0.11.3   reshape2_1.4  rj.gd_1.1.3-1
>> [6] stringr_0.6.2 tools_3.1.0
>>
>>
>>
>> On 12/15/2014 9:53 AM, Arunkumar Srinivasan wrote:
>>
>> I can't reproduce this in 1.9.5 (current devel):
>> http://github.com/Rdatatable/data.table
>>
>> On Mon, Dec 15, 2014 at 3:26 PM, Johann Hibschman <jhibschman at gmail.com>
>> wrote:
>>>
>>> I finally had time to put together a minimal example:
>>>
>>>     > d <- data.table(a=1:2, b=1:2)
>>>     > d[round(a) == a]
>>>        a b
>>>     1: 1 1
>>>     2: 2 2
>>>     > d[a == round(a)]
>>>     Error in eval(expr, envir, enclos) : object 'a' not found
>>>
>>> Is this a bug, or am I missing something about the scoping rules?
>>>
>>> R 3.1.2, data.table 1.9.4, on Windows 7.
>>>
>>> Thanks,
>>> Johann
>>>
>>> On Fri, Dec 12, 2014 at 10:18 AM, Johann Hibschman <jhibschman at gmail.com>
>>> wrote:
>>> > I just ran into an issue where d[X==round(X)] gives different results
>>> > from d[round(X) == X]. Why would that happen?
>>> >
>>> > Here's the exact example:
>>> >
>>> >> z.dev[YIELD == round(YIELD),]
>>> > Error in eval(expr, envir, enclos) : object 'YIELD' not found
>>> >> z.dev[round(YIELD) == YIELD,]
>>> >    runId dealName     cusip scenarioId shockId pathOrder PRICE100
>>> > YIELD MOD_DURN MOD_CONVEXITY DISC_MARGIN SPREAD_BP
>>> > 1: 10556 HVML0501 41161PLE1        772       0         3  54.5094
>>> > 6    4.739         0.431         400       418
>>> > 2: 10556 HVML0501 41161PLE1        773       0         3  52.9452
>>> > 6    4.706         0.427         400       424
>>> >
>>> > Thanks,
>>> > Johann
>>>  _______________________________________________
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>>> datatable-help at lists.r-forge.r-project.org
>>>
>>> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
>>>
>>
>>
>> _______________________________________________
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>>
>>
>> --
>> Melanie BACOU
>> International Food Policy Research Institute
>> Snr. Program Manager, HarvestChoice
>> Work +1(202)862-5699
>> E-mail m.bacou at cgiar.org
>> Visit www.harvestchoice.org
>>
>>
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