setGeneric("sd")
for example, and the original function becomes the default method. Then you can define appropriate methods for your objects.
-roger
[EMAIL PROTECTED] wrote:
Hi,
I'm writing some code that will eventually see its way to a package (I hope). I've noticed that some functions are not set up using generic methods (while similar functions are). For example, mean is a generic method but var is not. Other operations that I've come across that could benefit from being generic are: qqplot, cor, cov, optimize/optimise.
For example, if one were developing a control charting package, it be great to simply use sd(object), where object is of course the appropriate class, to get the standard deviation of the process as estimated be the charting method. Similarly, a DOE package might include optimize(object) to find the optimal operating conditions based on the data and specifications in object.
Just a thought,
Max
********************************************************************** This message is intended only for the designated recipient(s...{{dropped}}
______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
