The data included in FitDataError is not valid for maximum likelihood estimation with 'gamma' unless for every value x in the data, 0 < (x - loc)/scale < infinity.

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This means that the data must only include positive values, as the gamma distribution only applies to positive data. Additionally, the values must be transformed to be standardized with respect to the location (loc) and scale parameters of the gamma distribution. Specifically, each value must be shifted by the location parameter and then divided by the scale parameter. This ensures that the data is in a form suitable for maximum likelihood estimation with the gamma distribution.