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There are two ways of building initial conditions for models which are
not provided with the package.
- You may add a line to cdm.fit
with fitting parameters for your model and with parameters of approximation for
the power spectrum. This requires that your model is well fit by our
fitting formula (eq. 20). The format of the cdm.fit file
is described in the file. See also the routine TRUNF(k) for
details of the approximation of the power spectrum of perturbations.
- You may change the functions TRUNF in PMstartCDM.f and Pk
in PMmodels.f to return whatever initial spectra you desire.