HP 49g+ User Manual

Page 162

Page 16-5

data sets (x,y), stored in columns of the

DAT matrix. For this application,

you need to have at least two columns in your

DAT variable.

For example, to fit a linear relationship to the data shown in the table below:

x y

0 0.5
1 2.3
2 3.6
3 6.7
4 7.2
5 11

•

First, enter the two columns of data into variable

DAT by using the matrix

writer, and function STO

•

To access the program

3. Fit data..

, use the following keystrokes:

‚Ù˜˜@@@OK@@@ The input form will show the current

DAT,

already loaded. If needed, change your set up screen to the following
parameters for a linear fitting:

•

To obtain the data fitting press

@@OK@@. The output from this program,

shown below for our particular data set, consists of the following three
lines in RPN mode:

3: '0.195238095238 + 2.00857242857*X'

Correlation:

0.983781424465

Covariance:

7.03