x’ forecast only on HP-32E

[Namir]

(06-21-2023 01:59 PM)rawi Wrote:  Namir wrote:

Quote:If I rmember my summer stat course in 1979, classical linear regression is supposed to be used to predict y ONLY because the values of y can have errors while the values of x are error free. So predicting x for given y is a statistical heressy!! I mean you can still calculate x', but don't write home about it!

Strictly speaking, it is not a forecast of x, but it answers the question: What x will result in a forecast of a given y?

I hear you ... perhaps slightly more accurately put .... What x will result in a forecast of a given projected value of y.

BTW .. I am not a statistitcian (by education) ... although I spend a lot of time tinkering with curve fitting ... and probably committing an untold number of statistical herressies that would justify my burning at the stake!

Namir