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DISTR - probability distribution enumeration

DISTR = setmetatable({}, {
   __index = {
      CUSTOM = 0, -- Custom distribution;
      EXP = 1,    -- Exponential distribution;
      WEIBULL = 2 -- Weibull distribution;
      };
   __newindex = function() print( "Error!!!" ); end;
   });

The object provides a set of read-only numeric fields, each of which corresponds to a particular probability distribution.

createDistribution, Probability distributions