I will not (re-)define the basic terms used in describing how R is used... do read [1] for that.
[1] https://cran.r-project.org/doc/manuals/r-release/R-intro.html#Writing-your-own-functions, also via RShowDoc("R-intro"), in particular contrast section 1.5 vs section 10. On February 5, 2023 12:10:46 PM PST, Upananda Pani <upananda.p...@gmail.com> wrote: >Hi Jeff, > >Thanks for your reply. What do you exactly mean by "interactively"? Would >you please give me an example? >Upananda > >On Mon, Feb 6, 2023 at 1:27 AM Jeff Newmiller <jdnew...@dcn.davis.ca.us> >wrote: > >> No, it means what it says: it is best used interactively rather than in >> functions. That is not saying you cannot use it... merely that you should >> probably use it interactively. >> >> The fact is, though, that integer indexing is much simpler and clearer for >> your particular example than subset is. >> >> q <- p[1:20] >> q2 <- subset( p, 1:100 <= 20) # 1:100 are positions >> >> On February 5, 2023 11:33:16 AM PST, Upananda Pani < >> upananda.p...@gmail.com> wrote: >> >Thank you. It means we can not use the subset function here. >> > >> >Regards >> > >> >On Mon, 6 Feb, 2023, 00:53 Andrés González Carmona, <andre...@ugr.es> >> wrote: >> > >> >> From ?subset: >> >> Warning >> >> >> >> This is a convenience function intended for use interactively. For >> >> programming it is better to use the standard subsetting functions like [ >> >> <http://127.0.0.1:21786/library/base/help/%5B>, and in particular the >> >> non-standard evaluation of argument subset can have unanticipated >> >> consequences. >> >> >> >> El 05/02/2023 a las 15:07, Upananda Pani escribió: >> >> >> >> Dear All, >> >> >> >> I want to create a vector p and extract first 20 observations using >> subset >> >> function based on logical condition. >> >> >> >> My code is below >> >> >> >> p <- 0:100 >> >> >> >> I know i can extract the first 20 observations using the following >> command. >> >> >> >> q <- p[1:20] >> >> >> >> But I want to extract the first 20 observations using subset function >> which >> >> requires a logical condition. I am not able to frame the logical >> condition. >> >> >> >> The code should be >> >> >> >> q <- subset(p, logical condition) >> >> >> >> I am not able to do it. Please let me know what you think. >> >> >> >> Best regards, >> >> Upananda >> >> >> >> [[alternative HTML version deleted]] >> >> >> >> ______________________________________________r-h...@r-project.org >> mailing list -- To UNSUBSCRIBE and more, seehttps:// >> urldefense.com/v3/__https://stat.ethz.ch/mailman/listinfo/r-help__;!!D9dNQwwGXtA!SLdwTGqSfhwUo4CfbUJFeL7hETw64hOG8MQ0FK_o5YdnvVHaOp9Qxs4D7d5e10hj3YQ8EuaFc8qbnkynoP5dEA$ >> >> PLEASE do read the posting guide >> https://urldefense.com/v3/__http://www.R-project.org/posting-guide.html__;!!D9dNQwwGXtA!SLdwTGqSfhwUo4CfbUJFeL7hETw64hOG8MQ0FK_o5YdnvVHaOp9Qxs4D7d5e10hj3YQ8EuaFc8qbnkwuss43hA$ >> >> and provide commented, minimal, self-contained, reproducible code. >> >> >> >> -- >> >> * Andrés González Carmona * >> >> >> > >> > [[alternative HTML version deleted]] >> > >> >______________________________________________ >> >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> >https://stat.ethz.ch/mailman/listinfo/r-help >> >PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> >and provide commented, minimal, self-contained, reproducible code. >> >> -- >> Sent from my phone. Please excuse my brevity. >> -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
