Re: [R] Recoding numeric value
Thanks so much! I thought R places NA for missing values. I'll have to read up on it more. Thanks again! On May 18, 2:23 pm, Marc Schwartz marc_schwa...@me.com wrote: On May 18, 2012, at 2:26 PM, Giggles wrote: I am a newbie and can't figure out how to recode a numeric value. In my data (pharm311), I have a column called explain and I need to find all the 6's and change it to NA (blank). Could someone help? I'm sorry if this is too basic, I started messing with R this week and got stuck with this problem since yesterday... Thanks in advance! The easiest and canonical way would be: is.na(pharma311$explain) - pharma311$explain == 6 See ?is.na for more information. Just to be picky, an NA value is not the same as blank. That is NA != . R has specific behavior in dealing with NA values. Regards, Marc Schwartz __ r-h...@r-project.org mailing listhttps://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list 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.
Re: [R] Recoding numeric value
Thank you very much!! On May 18, 2:22 pm, David Winsemius dwinsem...@comcast.net wrote: On May 18, 2012, at 3:26 PM, Giggles wrote: I am a newbie and can't figure out how to recode a numeric value. In my data (pharm311), I have a column called explain and I need to find all the 6's and change it to NA (blank). Could someone help? is.na(pharm311$explain) - pharm311$explain==6 And do note: NA is not the same blank. It is missing. I'm sorry if this is too basic, I started messing with R this week and got stuck with this problem since yesterday... -- David Winsemius, MD West Hartford, CT __ r-h...@r-project.org mailing listhttps://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list 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.
Re: [R] Recoding numeric value
On May 18, 2012, at 3:26 PM, Giggles wrote: I am a newbie and can't figure out how to recode a numeric value. In my data (pharm311), I have a column called explain and I need to find all the 6's and change it to NA (blank). Could someone help? is.na(pharm311$explain) - pharm311$explain==6 And do note: NA is not the same blank. It is missing. I'm sorry if this is too basic, I started messing with R this week and got stuck with this problem since yesterday... -- David Winsemius, MD West Hartford, CT __ R-help@r-project.org mailing list 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.
Re: [R] Recoding numeric value
On May 18, 2012, at 2:26 PM, Giggles wrote: I am a newbie and can't figure out how to recode a numeric value. In my data (pharm311), I have a column called explain and I need to find all the 6's and change it to NA (blank). Could someone help? I'm sorry if this is too basic, I started messing with R this week and got stuck with this problem since yesterday... Thanks in advance! The easiest and canonical way would be: is.na(pharma311$explain) - pharma311$explain == 6 See ?is.na for more information. Just to be picky, an NA value is not the same as blank. That is NA != . R has specific behavior in dealing with NA values. Regards, Marc Schwartz __ R-help@r-project.org mailing list 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.
