HP 35s HP 35s scientific calculator - User Guide - Page 247
Statistics Programs, Curve Fitting
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Statistics Programs 16 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, m and b. The program includes a routine to calculate the estimates xˆ and yˆ . (For definitions of these values, see "Linear Regression" in chapter 12.) Samples of the curves and the relevant equations are shown below. The internal regression functions of the HP 35s are used to compute the regression coefficients. Statistics Programs 16-1
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Statistics Programs
16-1
16
Statistics Programs
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,
m
and
b
. The
program includes a routine to calculate the estimates
and
. (For definitions of
these values, see "Linear Regression" in chapter 12.)
Samples of the curves and the relevant equations are shown below. The internal
regression functions of the HP 35s are used to compute the regression coefficients.
x
ˆ
y
ˆ