Figure 1.

The Lorentzian distribution. The graph shows the t probability distribution for 1, 4, 10 and infinite degrees of freedom. The distribution with 1 df is also known as the Lorentzian or Cauchy distribution. Our robust curve fitting method assumes that scatter follows this distribution.

Motulsky and Brown BMC Bioinformatics 2006 7:123   doi:10.1186/1471-2105-7-123
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