Three-phase exponential decay function with time constant parameters.
Names: y0, A1, t1, A2, t2, A3, t3
Meanings: y0 = offset, A1 = amplitude, t1 = time constant, A2 = amplitude, t2 = time constant, A3 = amplitude, t3 = time constant
Lower Bounds: none
Upper Bounds: none
Note: different initial parameters are used for t1, t2 and t3 so as to make sure t3 > t2 > t1 in the fitting results.
Individual decay rate:
Individual half life:
Note: Half life is usually denoted by the symbol by convention.
Origin Basic Functions, Electrophysiology