Tuesday, May 17, 2011

The Monkey Run

May I show you my collection of slide rules?

When it comes to doing econometrics, students today just have no idea how lucky they are - compared with old geezers like me, that is. So, just for the record, this is how it went down when I was running regressions as a student, in the pre-P.C. (personal computer and politically correct) era:

Punch-card with a single SHAZAM command:

Punch-card with one row  (5 integer fields) of input data

Here, we have one row (one sample observation) from a data matrix for five input variables. For a sample of size n there would have been a stack of n cards like this.