📄 dgamma.m
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function f = dgamma(x,a)%DGAMMA The gamma density function%% f = dgamma(x,a)% Anders Holtsberg, 18-11-93% Copyright (c) Anders Holtsbergif any(any(a<=0)) error('Parameter a is wrong')endf = x .^ (a-1) .* exp(-x) ./ gamma(a);I0 = find(x<0);f(I0) = zeros(size(I0));
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