clear
window 0
defaults
!
set
 plotsymbol -17
 %plotsymbolsize 2
 plotsymbolcolor red
 curvecolor blue

x=[0:5:.25]
y=2*exp(-3*x)-0.5*ran(x)
set autoscale on
graph x y
scalar\fit a b c
a=1
b=-1
c=1
fit y = a*exp(b*x) + c
fit\update yfit
set
 curvecolor blue
 plotsymbol 0

graph\overlay x yfit
set
 %xtextlocation 10
 %ytextlocation 92
 textalign 1
 textinteractive 0

text 'FIT: y = a*exp(b*x)+c'
!
destroy\-mess x y a b c yfit