Jens Oehlschlägel-Akiyoshi
2000-Jan-03 12:42 UTC
[R] scan empty strings or data without NAs??
I just discovered that it is not possible to read in data with scan() and to have no na.strings at all scan(na.strings=NULL) gives an error message "invalid na.strings value". Furthermore it is not possible to read in empty strings, without automatic conversion to 'NA', because of if (!missing(sep)) na.strings <- c(na.strings, "") within scan() As scan() is a very basic function in R, I wish it would allow specifying na.strings=NULL and importing empty strings. Is there any specific reason not to allow this ? Regards -- Dr. Jens Oehlschl?gel-Akiyoshi MD FACTORY GmbH Bayerstrasse 21 80335 M?nchen Tel.: 089 545 28-27 Fax.: 089 545 28-10 http://www.mdfactory.de Standard Disclaimers: Opinions expressed here are personal and are not otherwise represented. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._