HP 48G Linear Regression Best Fit Line

[Rodger Rosenbaum]

(12-23-2021 03:35 AM)MNH Wrote:  

(12-22-2021 10:08 PM)Rodger Rosenbaum Wrote:  I'm eagerly awaiting your report that it's all working as it should!

OFIT

<< X ORTH DUP 1 GET ROT ROT * Y - SWAP ATAN COS * 5 RND NEG >>

ORTH

<< 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 >>

All working as it should! Thank you, Rodger!

The HP48 and descendants come through again! I'm glad it all worked out--you'll be the envy of the other guys you work with. :-)