Abstract
Non-Gaussianity in the cosmic microwave background and the large-scale structure of galaxies provides an increasingly powerful probe of the universe. I implement an algorithm to generate realisations of fields that possess an arbitrary probability distribution function and an arbitrary power spectrum and demonstrate the code with a number of examples, including the uniform distribution, the Laplace distribution, the χ and χ2 distributions, Rayleigh and Maxwell-Boltzmann distributions. The code is available at http://sourceforge.net/projects/nongaussian.
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