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%% Compute the Poisson Distribution pdf % Copyright 2015 The MathWorks, Inc. %% % Create a Poisson distribution object with the rate parameter, $\lambda$, % equal to 2. lambda = 2; pd = makedist('Poisson',lambda); %% % Define the input vector _x_ to contain the values at which to calculate % the pdf. x = [0 1 2 3 4]; %% % Compute the pdf values for the Poisson distribution at the values in _x_. y = pdf(pd,x) %% % Each value in _y_ corresponds to a value in the input vector _x_. For % example, at the value _x_ equal to 3, the corresponding pdf value in _y_ % is equal to 0.1804. %% % Alternatively, you can compute the same pdf values without creating a % probability distribution object. Use the |pdf| function, and specify a % Poisson distribution using the same value for the rate parameter, % $\lambda$. y2 = pdf('Poisson',x,lambda) %% % The pdf values are the same as those computed using the probability % distribution object.