MATLAB Programming Fundamentals - MathWorks

Group1 = [A;B];

Summarize the categorical array, Group1

summary(Group1)

milk 20

water 18

juice 15

Group1 is a 53-by-1 categorical array with three categories: milk, water, and juice.

Create Categorical Array with Different Categories

Create a categorical array, Group2, containing data from 50 students who were given the

additional beverage option of soda.

Group2 = gallery('integerdata',4,[50,1],2);

Group2 = categorical(Group2,1:4,{'juice' 'milk' 'soda' 'water'});

Summarize the categorical array, Group2.

summary(Group2)

juice 18

milk 10

soda 13

water 9

Group2 is a 50-by-1 categorical array with four categories: juice, milk, soda, and

water.

Concatenate Arrays with Different Categories

Concatenate the data from Group1 and Group2.

students = [Group1;Group2];

Summarize the resulting categorical array, students.

summary(students)

milk 30

water 27

juice 33

soda 13

8 Categorical Arrays