S4 generic functions dispatch on the basis of the classes of their arguments while S3 generics only dispatch on the class of the first argument. If this makes no sense to you then you need to study more in whatever text you are learning R from.
Sent from my iPhone > On Mar 7, 2014, at 8:38 AM, Bill <william...@gmail.com> wrote: > > Hi. I am trying to plot. In the changepoint package documentation it says > something about signature. > http://cran.r-project.org/web/packages/changepoint/changepoint.pdf > > print-methods ~~ Methods for Function print in Package 'base' ~~ > Description > ~~ Methods for function print in Package 'base' ~~ > Methods > signature(x = "ANY") Generic print function, see base package description > using ?print > signature(x = "cpt") Prints out information contained within the object x > including a summary > signature(x = "cpt.reg") Prints out information contained within the object > x including a > summary > > I don't understand what they mean by signature. For example, there is a > function called > binseg.mean.cusum > > and I want to plot the results. > I tried this: > binsegeeV=binseg.mean.cusum(eeV, Q=5, pen=0) > > plot(binsegeeV,cpt.width=3) > > but I get this. > Error in xy.coords(x, y, xlabel, ylabel, log) : > 'x' is a list, but does not have components 'x' and 'y' > > Anyone know how I can plot the results of binseg.mean.cusum() ? > Thanks. > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. ______________________________________________ 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.
