R help - Nov 2013 - help with converting a data frame into object of class "track"

Dear R users,

I am trying to run a Bayesian change point analysis on a time series with the R
package "bcpa". However, the data file needs to be of the class
"track". My data file is at present a three-column data frame (Time, X
and Y coordinates) and I am unable to change to class "track" using
either "setClass", "setAs" or "as", and if I try
to coerce it gives an error message that doesn't allow me to do that.

Please help!

Best regards,

Nachiket

ATREE, Bangalore