Hi Michael, Thanks so much for your detailed reply! I gained a better understanding of the read.fwf function, along with ensuring I better note how these read-in functions convert variables, etc. As well, your tip on removing "format" while converting the PRVDR_NUM variable to numeric (from factor) is the ticket! Also, your reply aided with noting which code (of three options to subset data) is the "best" to use.
At this time I've been able to successfully output the data file at hand. Thanks again for your help! -- View this message in context: http://r.789695.n4.nabble.com/Subsetting-a-data-frame-Read-in-with-FWF-format-from-DAT-file-tp4461051p4466513.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
