Astsa

The second edition of the text, which included the subtitle *With R Examples* was when we started
giving R code in the text and writing R scripts to compensate for the fact that S and consequently R provided scripts for time series as an afterthought. Still, much of the analysis in the text was done using Matlab.

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The first edition of *Time Series Analysis and Its Applications* used
an updated version of the basic `ASTSA` and it was distributed on the website for that
version: [Edition 1 site](https://www.stat.pitt.edu/stoffer/xtra_stuff/tsa.html).
You had to extract the files to a floppy (3.5" by that time) and then install `ASTSA`.




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<img src="fun_with_astsa/figs/astsa_v0.jpg" alt="floppy" height="300">

The first version of `ASTSA` was developed by R.H. Shumway for the new text *Applied Statistical Time Series Analysis* published by Prentice Hall. The package was written in Microsoft basic and was distributed on a 5.25" floppy disk that was included with the text.

The instruction manual has been preserved for historical purposes: [http://www.stat.pitt.edu/stoffer/astsaman.pdf](http://www.stat.pitt.edu/stoffer/astsaman.pdf)