[Gnuplot-info] Don't let gnuplot exit after "singular matrix" message?

[leo m. <llu...@go...>]

Dear all,

is it possible to set up gnuplot in a way that it won't exit after a
"singular matrix"
message during fitting?

I have a script like this...

----x------>

#!/usr/bin/gnuplot

set fit errorvariables

FIT_LIMIT = 1e-6
FIT_MAXITER = 80

f(x) = a * exp(b*x + c) + d
fit f(x) "exp.dat" using 2:3 via a, b, c, d
fx_err = a_err + b_err + c_err + d_err

g(x) = e + f*x + g*x**2 + h*x**3 + i*x**4 + j*x**5
fit g(x) "exp.dat" using 2:3 via e, f, g, h, i, j
gx_err = e_err + f_err + g_err + h_err + i_err + j_err

[...]

<-----x-------

After fitting to different models i'll choose the one with the
smallest residual and
let it plot to a png file.

Is there a way to "hack" this immediate exit?

Best regards