Finding equation parameters from data set?
20 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have a data set of x and y:
x = [2.0, 2.5, 3.0, 3.5, 6.0, 6.1, 8.5, 8.6, 9.9, 10.0];
y = [0.001, 0.006, 0.032, 0.180, 1E3, 2E3, 5.6E6, 8E6, 5E8, 1E9];
I'm looking to do different polynomial fits (linear, quadratic, exponential, power, logarithmic) from this data, but I need to know the equation constants/parameters (like slope and intercept) before I can fit them.
For example, a linear equation takes the form "y = m*x + b", and I want to know "m" and "b". Same with quadraatic equation, y = a*x^2 + b*x +c, I want to know a, b, and c. How do I solve for these given the data and built-in MATLAB functions? Do I have to use a matrix operation of some kind?
0 Kommentare
Antworten (1)
Siehe auch
Kategorien
Mehr zu Linear and Nonlinear Regression finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!