These are exemples of the R and Python scripts used in the article "Large‐scale genetic panmixia in the blue shark (Prionace glauca): A single worldwide population, or a genetic lag‐time effect of the “grey zone” of differentiation?".

First, generate data with the python files (grey_zone.py or bottleneck.py)

Second, load plotdegrad.r

Then, use graph_gz.r to generate plots

With the adjustments necessary to your data.

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Please, do not use (with or witout modifications) without citing SimuPop/R and the original article.