[12C] Linear Regression

01192019, 06:01 AM
(This post was last modified: 01192019 06:10 AM by Gamo.)
Post: #1




[12C] Linear Regression
HP10C 11C and 15C came with [L.R.] (Linear Regression) function.
HP12C don't have this function this program will do the L.R. function based on the formula shown on the HP11C manual on page 63 To use this L.R. function program, use the [Σ+] key to accumulate the statistic of a series of two or more data pair. Then execute [R/S] Procedure: [R/S] display Yintercept on stack register X [X<>Y] display Slope on stack register Y  Program: L.R. for HP12C Quote:RCL 1 Remark: For HP12C Platinum Simply remove [ENTER] [x] to [X^2] And remove [STO] 0 [RCL] 0 and [X<>Y] Gamo 

01192019, 01:46 PM
Post: #2




RE: [12C] Linear Regression
Gamo,
The HP 12c has linear regression built in. The slope has to be computed by calculating the difference in the predicted Yvalues for two Xvalues. This is covered in the HP12c manual and in the learning module. HP12c learning module 

01192019, 01:57 PM
(This post was last modified: 01192019 02:09 PM by Dieter.)
Post: #3




RE: [12C] Linear Regression
(01192019 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 Yvalues for two Xvalues. This has already been discussed here, cf. http://www.hpmuseum.org/forum/thread618...l#pid55342 0 g [y^, r] => intercept 1 g [y^, r] => slope + intercept So this... Code: 1 ...returns the yintercept 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 

01202019, 12:19 AM
(This post was last modified: 01202019 12:19 AM by Gamo.)
Post: #4




RE: [12C] Linear Regression
Thanks to Dieter and Gene
The 12C learning module explain in detail and same as Dieter mention. No wonder that 12C came with both X^,r and Y^,r Gamo 

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