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
<[email protected] <mailto:[email protected]>> 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
<[email protected] <mailto:[email protected]>> 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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