st: Time series analysis by subsets within data set

["Michael Crain" <michaelcrain@hotmail.com>]

I am having difficulty in a time series analysis.

My data set looks like this:
Week
Customer
Sales

I want to perform time series analysis on EACH CUSTOMER.  I cannot figure 
out how to run the time series commands (e.g., graphics, arima) on each 
customer seperately within a single data set.

Any help is appreciated.  Thank you.

M. Crain

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