Dear R-help, I recently upgraded to R 3.1 patched and code that ran fine previously and now giving a lot of errors because the data is coming in as strings instead of numeric. I can fix my code to wrapping each item I want to use with as.numeric(), but that seems very inefficient.
I looked at the change list for R 3.1 and I see the first item is a change in type.convert() that seems to be causing me grief. The suggestion is to use colClasses, but when I try to do so I get an error regarding the quotes again... > ann1 <- read.table(driveletter %+% "/snap/ann/snap_fyr_ann1_" %+% i > %+% ".txt", header=TRUE, quote="", as.is=TRUE, colClasses='numeric') Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : scan() expected 'a real', got '"1033.7"' Does anyone have any suggestions? CHANGES IN R 3.1.0: NEW FEATURES type.convert() (and hence by default read.table()) returns a character vector or factor when representing a numeric input as a double would lose accuracy. Similarly for complex inputs. If a file contains numeric data with unrepresentable numbers of decimal places that are intended to be read as numeric, specify colClasses in read.table() to be"numeric". *************************************************************** This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No right to confidential or privileged treatment of this message is waived or lost by an error in transmission. If you have received this message in error, please immediately notify the sender by e-mail, delete the message and all copies from your system and destroy any hard copies. You must not, directly or indirectly, use, disclose, distribute, print or copy any part of this message if you are not the intended recipient. ______________________________________________ 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.
