[datatable-help] Ordering of filter expressions

[Arunkumar Srinivasan]

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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>>
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>>
>
>
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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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