hellow every body, In my poly-function the parameters are vectors and not scalars, can any body tell me how to find those vectors; I just remind that I have experimental xdata and ydata and I want to find the parameters a,b,c,... to fit y=poly-function(xdata,a,b,c,...) so at each xdata(i) point I will have coresponding a(i), b(i), c(i),... and all this using least square fitting Thanks in advance
how to simulate experimental data with a poly-function
2 views (last 30 days)
Show older comments
how to simulate experimental data with a poly-function (F+G*T...; F G T are non linear functions) and estimate parameters (F(a,b,c,...,x); a b c are parameters and x is the variable Load y(x) with x to MATLAB, and I have the general form y=F+G*T.... with parameters inside, so I want to fit y of the model to experimental data and extract the values of the parameters from this mach
2 Comments
Matt J
on 8 Feb 2013
It doesn't change anything that your parameters are now scalars and not vectors. When you use LSQCURVEFIT, you pass all of your parameters bundled into a vector [a,b,c,...] anyway.
Accepted Answer
Matt J
on 27 Jan 2013
Use LSQCURVEFIT if you've got it. Or, one of the functions in the Curve Fit Toolbox.
0 Comments
More Answers (0)
See Also
Categories
Find more on Structural Mechanics in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!