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HP 48G Linear Regression Best Fit Line
12-22-2021, 02:26 AM (This post was last modified: 12-22-2021 02:26 AM by Rodger Rosenbaum.)
Post: #44
RE: HP 48G Linear Regression Best Fit Line
I see a problem. I was looking at an earlier version of ORTH when I posted it a while ago.

The ORTH program needs a couple more items at the end:

<< LR SWAP DROP DUP CORR DUP SIGN 4 ROLLD SQ / SWAP INV -
2 / DUP SQ 1 + √ ROT * + DUP ΣX * NEG ΣY + NΣ / { 2. 1. } →ARRY >>

Make this change shown in red to ORTH and see if it all works.
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RE: HP 48G Linear Regression Best Fit Line - Rodger Rosenbaum - 12-22-2021 02:26 AM



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