I would like to use the "row number" information returned from performing a subset command on a dataframe.
For example, I would like to automatically delete some rows from a dataframe if they match a criteria. Here is my example below. data(airquality) names(airquality) subset(airquality, airquality$Month == 6) Now how do I delete the row numbers returned automatically? I know I can type airquality_mod<-airquality[-c(32:60)] However, I would like to check the row information and then use it to delete the stuff out of the dataframe. Thank again for any feedback and insights. ______________________________________________ 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.
