Statistics Programs; Curve Fitting - HP -32S Owner's Manual

13
Statistics Programs
The memory usage and checksum for each program label can be
checked using the catalog of programs (page 85).
Curve Fitting
This program can be used to fit one of four models of equations to
your data. These models are the straight line, the logarithmic curve,
the exponential curve and the power curve. The program accepts two
or more (x, y) data pairs and then calculates the correlation coefficient,
r, and the two regression coefficients, mand b. The program includes
a routine to calculate the estimates x and y. (For definitions of these
values, see 'Linear Regression* in chapter 11.)
Samples of the curves and the relevant equations are shown below.
The internal regression functions of the HP-32S are used to compute
the regression coefficients.
204 13: Statistics Programs