Sam Steingold <sds <at> podval.org> writes: > > Hi, > It appears that deal does not support missing values (NA), so I need to > remove them (NAs) from my data frame. > how do I do this? > (I am very new to R, so a detailed step-by-step > explanation with code samples would be nice).
If you wanted to remove rows with NAs from data frame X na.omit(X) would do it. In this case I think X[!sapply(X,function(z)any(is.na(z)))] should work, although I haven't tested it. function(z)any(is.na(z)) looks for any NA values sapply applies the function to each element in the list (= column in the data frame) and returns a vector ! negates the logical vector [] picks the appropriate elements (=columns) out of the list (=dataframe) I haven't tested it. Conceivably X[!sapply(is.na(X),any)] or X[sapply(!is.na(X),all)] would work too, although I'm not sure. Ben ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
