Overview for Make Indicator Variables

Use Make Indicator Variables to create columns of 0s and 1s from a categorical variable. Minitab creates a new column for each unique value in the original column. The value 1 means that the observation belongs in that category, and the value 0 means that it does not.

For example, an engineer makes indicator variables for the categorical variable Gender. Minitab produces one indicator variable for female (Gender_female) and one indicator variable for male (Gender_male). For each observation (row), Minitab stores the value of 1 for true and 0 for false.

C1-T C2 C3
Gender Gender_female Gender_male
male 0 1
female 1 0
female 1 0
... ... ...

Where to find this command

To create indicator variables, choose Calc > Make Indicator Variables.

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