Description |
Command |
Formula |
Cubic regression |
CubicReg |
y = a x^{3} + b x^{2} + c x + d |
Exponential regression |
ExpReg |
y = a b^{x} |
Linear regression |
LinReg |
y = a + b x |
Logarithmic regression |
LnReg |
y = a + b ln(x) |
Median-median fit |
MedMed |
y = a + b x |
Power regression |
PowerReg |
y = a x^{b} |
Quadratic regression |
QuadReg |
y = a x^{2} + b x + c |
Quartic regression |
QuartReg |
y = a x^{4} + b x^{3} + c x^{2} + d x + e |
Sinusoidal regression |
SinReg |
y = a sin(b x + c) + d |
Logistic regression |
Logistic |
y = a (1 + b e^{c x})^{-1} + d |