signal = twoexp(p, x, {signal}) : two exponential decay functions
iFunc/twoexp two exponential decay functions (fit 1D function/model)
y=p(1)*exp(-x/p(2))+p(3)*exp(-x/p(4)) + p(5);
twoexp([tau1 tau2]) creates a model with specified decay constants
twoexp([ parameters ]) creates a model with specified model parameters
input: p: twoexp model parameters (double)
p = [ 'Amplitude1' 'Tau1' 'Amplitude2' 'Tau2' 'Background' ] as a numerical array
or 'guess'
x: axis (double)
y: when values are given and p='guess', a guess of the parameters is performed (double)
output: y: model value
ex: signal=twoexp([1 0 1 1], -10:10); or plot(twoexp)
Version: Aug. 22, 2017
See also iData, iFunc/fits, iFunc/plot, expon, sinedamp
(c) E.Farhi, ILL. License: EUPL.