x =
InvertLogistic(y,a,b);
Compute the inverse of a logistic equation.
The form of the logistic equation is y = 1/(1+10^-(ax+b)).
See also:
ComputeLogistic,
FitLogistic,
FitLogitYN.
2/15/95 dhb Wrote it.
Psychtoolbox/Psychometric/InvertLogistic.m