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Logarithmic Regression Calculation (y=a+b･ln(x))
Commands
With logarithmic regression, regression is performed in accordance with
the following model equation.
y = a + blnx
The following is the calculation formula used for each command.
• Summation Sub-menu, Variable Sub-menu, Min/Max Sub-menu, and
Regression Sub-menu operations are the same those for linear
regression calculations.
Logarithmic Regression Calculation Examples
Select logarithmic regression and input the following data (Statistics: Off)
x y
29 1.6
50 23.5
74 38.0
103 46.4
118 48.9
(Select Type) (y=a+b･ln(x))
29 50 74 103 118
80
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