On Tuesday, April 15, 2014 04:38:01 AM Spencer Lyon wrote:
> I am not sure I understand what you mean by
>
> You could also scale the values if they aren’t usually spaced by 1.
Basically, any time your values are evenly spaced, there is a linear mapping
x->xi from "physical" coordinates x to "indexing" coordinates xi, where x[1]
corresponds to xi=1 and x[n] corresponds to xi=n. It's just a question of
solving the equations
1 = m*x[1] + b
n = m*x[n] + b
for m and b. Then you can use ig[m*x+b] to evaluate at "physical" locations.
--Tim
