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[12C] Linear Regression
01-19-2019, 01:57 PM (This post was last modified: 01-19-2019 02:09 PM by Dieter.)
Post: #3
RE: [12C] Linear Regression
(01-19-2019 01:46 PM)Gene Wrote:  The HP 12c has linear regression built in. The slope has to be computed by calculating the difference in the predicted Y-values for two X-values.

This has already been discussed here, cf. http://www.hpmuseum.org/forum/thread-618...l#pid55342

0  g [y^, r] => intercept
1  g [y^, r] => slope + intercept

So this...
Code:
1
y^, r
0
y^, r
x<>y
R↓
-
LstX

...returns the y-intercept in X, the slope in Y and the correlation coefficient in Z and T.

Also post #8 in that thread has essentially the same program as Gamo's, just without the double calculation of the determinant.

Note: Gamo, I have sent a PM earlier today as you originally posted this to the Articles forum where no replies are possible.

Dieter
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Messages In This Thread
[12C] Linear Regression - Gamo - 01-19-2019, 06:01 AM
RE: [12C] Linear Regression - Gene - 01-19-2019, 01:46 PM
RE: [12C] Linear Regression - Dieter - 01-19-2019 01:57 PM
RE: [12C] Linear Regression - Gamo - 01-20-2019, 12:19 AM



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