Sorry to keep posting but I want to do this right and I'm hoping for some pointers I now have two time series objects which I need to subtract. Unfortunatly the two series dont have the same sample rates. When I try to subtract them
avgSub<-avg1-avg2 The time series object is clever enough to object. So I guess I need to write a function for subtraction of the time series objects which will need to interpolate the samples to the same sampling time (this linear interpolation should be ok here) I would like to make this function the default one to be used when a ts subtractin is attempted. Unfortunatly I dont really have much idea where to start with this. If someone could point me in the direction of some good reading I'll be grateful. Many thanks (again) Tom ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html