Lawrence Habahbeh wrote: > Hi,
> In the online > [Docs](https://www.gnu.org/software/gsl/doc/html/index.html) ยป > Nonlinear Least-Squares Fitting, there is an example of fitting an > exponential function to data. The data object is a structure with > three arguments > struct data { > size_t n; > double *t; > double *y; >> ; > Can you please show me how to read the data from a text file and run > the optimization as is. . The data is a column vector with daily > observations and T = 120000 points . About the data, start by toying with this: https://gist.github.com/marcomaggi/8530cf839f462078eb4e5f33255b6663 -- Marco Maggi
