A variable's measurement level determines the way it is treated in analyses. In the data window, measurement levels appear above the variable names, in the upper right portion of the column header.
A categorical variable is defined as one that can assume only a limited number of values. For example, a person's sex is a categorical variable that can assume one of two values. Variables with levels ...
Tabulating the number of objects in categories of interest dates back to the earliest records of commerce and population censuses. So far in this column, we have discussed mainly the statistical ...
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