Is that kind of substitution possible?

[Brouard N. <br...@in...>]

I am not so familiar with the recent macros but I am able to something
like: 
 gnuplot> alpha="3.51e-5"
 gnuplot> beta="0.09400"
 gnuplot> evie(alpha,beta)= `echo 90.0000  @alpha 0.00000  @beta  0.10000 1|./eviegompertz`
 gnuplot>print evie(alpha,beta)
 4.230246

where eviegompertz is a private C program which can't be simulated in
gnuplot and just output a value.

Now I want to just "splot evie(x,y)" where x and y are variables and not
only fixed values. Is it possible to do it? I haven't seen such similar
examples. It may be trivial, sorry.


Nicolas
-- 
Brouard Nicolas <br...@in...>