For a given data.table, is there any condition … Ergo, it's a bug, right? Yes.
I'll be glad to try to boil this down to something that's reproducible. That'd be great. Arun From: Michael Smith [email protected] Reply: Michael Smith [email protected] Date: June 20, 2014 at 5:37:24 AM To: [email protected] [email protected] Subject: Re: [datatable-help] Bug when Merging with nomatch=0 and roll=T? So let me rephrase my question (haven't received an answer so far): For a given data.table, is there any condition under which the lengths of the vectors in each column may differ? Based on my understanding, each data.table is also a data.frame, and with a data frame this should not be possible. For example, it's not possible to have a data.frame where the first column is a vector of length eight, and the second column is a vector of length nine. Ergo, it's a bug, right? If my understanding is correct, please do let me know and I'll be glad to try to boil this down to something that's reproducible. Thanks, M On 06/19/2014 11:59 AM, Michael Smith wrote: > By the way, I know it's not reproducible with the code below. Before > going into further detail, I first wanted to ask whether this looks like > a bug, or whether I've overlooked something obvious and this is expected > behavior. > > Thanks, > M > > On 06/19/2014 11:51 AM, Michael Smith wrote: >> I got the following result on my keyed data tables `CS` and `SP`, which >> seems like a bug (in 1.9.2 and 1.9.3 dev version) to me, since all >> columns should have the _same_ length: >> >>> ## Works as expected: >>> all((l <- sapply(CS[SP, roll = TRUE], length)) == l[1]) >> [1] TRUE >>> ## Works as expected: >>> all((l <- sapply(CS[SP, nomatch = 0], length)) == l[1]) >> [1] TRUE >>> ## Here's the potential _bug_, when combining both: >>> all((l <- sapply(CS[SP, nomatch = 0, roll = TRUE], length)) == l[1]) >> [1] FALSE >> >> >> Thanks, >> >> M >> _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
_______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
