[datatable-help] merge zero row data.table

[Arunkumar Srinivasan]

Great! Thanks a bunch.

Arun

From: G See gsee000 at gmail.com
Reply: G See gsee000 at gmail.com
Date: May 9, 2014 at 1:10:07 AM
To: Arunkumar Srinivasan aragorn168b at gmail.com
Cc: datatable-help at lists.r-forge.r-project.org datatable-help at lists.r-forge.r-project.org
Subject:  Re: [datatable-help] merge zero row data.table  

Thanks Arun. Bug filed:  
https://r-forge.r-project.org/tracker/index.php?func=detail&aid=5672&group_id=240&atid=975  

On Thu, May 8, 2014 at 6:00 PM, Arunkumar Srinivasan  
<aragorn168b at gmail.com> wrote:  
> Garrett,  
>  
> Seems like it works fine in 1.9.2. I'd say it's a bug introduced due to  
> changes in 1.9.3. Could you please file it as one? Thanks.  
>  
> Arun  
>  
> From: G See gsee000 at gmail.com  
> Reply: G See gsee000 at gmail.com  
> Date: May 9, 2014 at 12:57:15 AM  
> To: datatable-help at lists.r-forge.r-project.org  
> datatable-help at lists.r-forge.r-project.org  
> Subject: [datatable-help] merge zero row data.table  
>  
> Hi,  
>  
> Is the following error expected?  
>  
>> library(data.table)  
> data.table 1.9.3 For help type: help("data.table")  
>> a <- data.table(BOD, key="Time")  
>> b <- data.table(BOD, key="Time")[Time < 0] # zero row data.table  
>> merge(a,b, all=TRUE) # works fine  
> Time demand.x demand.y  
> 1: 1 8.3 NA  
> 2: 2 10.3 NA  
> 3: 3 19.0 NA  
> 4: 4 16.0 NA  
> 5: 5 15.6 NA  
> 6: 7 19.8 NA  
>> merge(b,a, all=TRUE) # error  
> Error in setcolorder(dt, c(setdiff(names(dt), end), end)) :  
> neworder is length 2 but x has 3 columns.  
>  
> Thanks,  
> Garrett  
>  
> p.s. using svn Rev. 1263  
> _______________________________________________  
> datatable-help mailing list  
> datatable-help at lists.r-forge.r-project.org  
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