ddm.fitting.schultz#

ddm.fitting.schultz(lagtime, tau1, tau2, n, S, Z)[source]#

Function for the so called Schultz model for fitting to DDM data containing both diffusive and actively directed motion

Parameters:

  • lagtime (array_like) – array of the lag times

  • tau1 (float) – decay time for the exponential part of ISF

  • tau2 (floar) – decay time for directed motion part of ISF

  • n (float) – fraction of dynamics undergoing ballistic motion

  • S (float) – stretching exponent

  • Z (float) – Schultz distribution number

Return type:

theoretical ISF for schultz distribution for given values