With the discussion on ladder testing, and other things, I wanted to share another way to test accuracy especially when you have questions about what is better... X or Y... Or Z?
It's called by any number of names, but usually it is design of experiments (doe), taguchi orthogonal array / matrix, or ANOVA.
Why should I care about it? It is a method used to test multiple variables simultaneously, with high confidence in the results, without having to try every single combination.
Example: I want to test out two different primers, what lube is best (lla or moly-bee), crimp or no crimp, different makes of brass (hxp vs win), and powder charge of bullseye powder, to see what's most accurate. Normally this is 2x2x2x2x2 = 32 different combinations... using taguchi, we can test this in 8 runs with a factorial array. This saves time, money, and the wear and tear.
I'll post more as I go along with my experiment. There's a few posts on the interwebs... Search taguchi reloading, or design of experiments reloading. I found this when I was working as an engineer and doing a lot of 6sigma stuff... Currently I do a bunch of statistical analysis... But I am far from an expert... More interested in sharing knowledge.
Thanks!
Andy
It's called by any number of names, but usually it is design of experiments (doe), taguchi orthogonal array / matrix, or ANOVA.
Why should I care about it? It is a method used to test multiple variables simultaneously, with high confidence in the results, without having to try every single combination.
Example: I want to test out two different primers, what lube is best (lla or moly-bee), crimp or no crimp, different makes of brass (hxp vs win), and powder charge of bullseye powder, to see what's most accurate. Normally this is 2x2x2x2x2 = 32 different combinations... using taguchi, we can test this in 8 runs with a factorial array. This saves time, money, and the wear and tear.
I'll post more as I go along with my experiment. There's a few posts on the interwebs... Search taguchi reloading, or design of experiments reloading. I found this when I was working as an engineer and doing a lot of 6sigma stuff... Currently I do a bunch of statistical analysis... But I am far from an expert... More interested in sharing knowledge.
Thanks!
Andy
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