* 1st row is skipped as comment line.
* In 2nd row and below, each column is separated by comma (separation by space or tab is not allowed).
* 1st column: q[i], 2nd column: intensity[i], 3rd column: error[i] (optional)
* If 3rd column is specified, each error will be considered in NLS minimization. To run the program properly, you need JavaScript enabled.
Author: Masaki Kojima (originally written by VAX Fortran) & Miho Ishizuka (translated by JavaScript) Contact us