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...ponse. I still have not been able to figure out what is happening. I also noticed another oddity. When the data part of the object is a multivariate time series, it doesn't show up in the structure, but it can be treated as a multivariate time series. Is this a bug in str? > setClass("tsExtended", representation = representation(description + = "character"), contains = "ts") [1] "tsExtended" > tmp <- new("tsExtended", matrix(1:20, ncol=2), description = "My Time Series") > tsp(tmp) <- c(1, 5.5, 2) > tmp Object of class...

...g to define an S4 class that contains a ts class object, a simple example is shown in the code below. However, when I try to create a new object of this class the tsp part is ignored, see below. Am I doing something wrong, or is this just a peril of mixing S3 and S4 objects? > setClass("tsExtended", representation = representation(description = "character"), contains = "ts") [1] "tsExtended" > new("tsExtended", ts(1:10, frequency = 2), description = "My Time Series") Object of class "tsExtended" Time Series: Start = 1 End =...