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...me value. The time steps are unequal. What package is best for doing the regression and plotting the predicted values against the actual data? Also, what format does my data need to be in when I use the package? For example, I looked at the cts package documentation and it has examples for data(V22174) *but I have no idea how the data in V22174 looks*. Is it a ts object, a zoo object ... etc? Lastly, if I have two different measurements for the time series data (e.g., heading and displacement) can I do a multivariate regression? Thank you, Keith [[alternative HTML version deleted]]