# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 500, 350 
# set output 'fit.4.png'
set key bmargin center horizontal Right noreverse enhanced autotitles nobox
set title "all fit params set to 0" 
set xlabel "Temperature T  [deg Cels.]" 
set ylabel "Density [g/cm3]" 
l(x) = y0 + m*x
y0 = 1.0801657398893
m = -0.00118151895103717
GPFUN_l = "l(x) = y0 + m*x"
FIT_CONVERGED = 1
FIT_NDF = 35
FIT_STDFIT = 0.000433301255025207
FIT_WSSR = 6.57124921622469e-06
plot [*:*][-.1:1.2] 'lcdemo.dat', l(x)
## fit l(x) 'lcdemo.dat' via y0, m