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%% Summary of Each Column in Categorical Array %% % Create a 3-by-2 categorical array, |A|, from a numeric array. X = [1 3; 2 1; 3 1; 4 2]; valueset = 1:3; catnames = {'red' 'green' 'blue'}; A = categorical(X,valueset,catnames) %% % |A| has three categories, |red|, |green|, and |blue|. The value, |4|, % was not included in the |valueset| input to the |categorical| function. % Therefore, the corresponding element, |A(4,1)|, does not have a corresponding % category and is undefined. %% % Print a summary of |A|. summary(A) %% % |red| appears in one element in the first column of |A| and two in the % second column. %% % |green| appears in one element in the first column of |A| and none in % the second column. %% % |blue| appears in one element in the first column of |A| and one in the % second column. %% % |A| contains only one undefined element. It occurs in the first column.