Discrete modelling is the discrete analogue of continuous modelling. In discrete modelling, formulae are fit to discrete data—data that could potentially take on only a countable set of values, such as the integers, and which are not infinitely divisible. A common method in this form of modelling is to use recurrence relations. Discrete time models are well-suited for step-by-step computer simulations and are often appropriate for modelling experimental data, which is typically collected in discrete form.
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