Tutorial by Examples

There can be up to 12 independent variables, there is always 1 dependent variable, and any number of parameters can be fitted. Optionally, error estimates can be input for weighting the data points. (T. Williams, C. Kelley - gnuplot 5.0, An Interactive Plotting Program) If you have a data set a...

If you load your fit parameters from a file, you should declare in it all the parameters you're going to use and, when needed, initialise them. ## Start parameters for the fit of data.dat m = -0.0005 q = -0.0005 d = 1.02 Tc = 45.0 g_d = 1.0 b = 0.0100...

The basic use of fit is best explained by a simple example: f(x) = a + b*x + c*x**2 fit [-234:320][0:200] f(x) ’measured.dat’ using 1:2 skip 4 via a,b,c plot ’measured.dat’ u 1:2, f(x) Ranges may be specified to filter the data used in fitting. Out-of-range data points are ignored. (T. W...