search for: mergeseri

Is there a function in R that is equivalent to S-PLUS's seriesMerge(x1, x2, pos="union") where x1, and x2 are of class timeSeries seriesMerge is in S-PLUS's finmetrics. I looked into R's mergeSeries (in fSeries part of Rmetrics) but I could not make it behave quite the same. In R it expected a timeSeries object and a matrix of the same row count. In S-PLUS when using the union option both objects can be of different lengths.

I have two time series a <- ts(1:10, start=c(1,6), end=c(2,5), frequency=10) b <- ts(1:5, start=c(2,1), end=c(2,5), frequency=10) Obviously 'b' is a subset of 'a'. I want a single index value indicating where that start of 'b' lines up with the start of 'a'. So in this simple example I would expect an index of 5. I was playing with 'merge'.