# Calculate > Frequency Table

This utility computes the frequencies of data belonging to different categories or classes. You must provide the data (category names or numbers) to be counted in a column. If the data is numerical, you must provide the upper limits of the classes for which frequencies are computed. The categories/classes and their corresponding frequencies are computed and stored in columns specified by the user.

### Dialog Inputs

- Source Data: Select the column containing input data in the Compute frequency data for column: drop-down menu.
- Methods of Computing Frequencies: Choose one of the following:
  - Treat source data as categories. Count the frequency of each category.
  - Source data contains numerical data. Count the frequency of each class, where the upper class limits are provided (you must select the column containing the upper class limits in the corresponding drop-down menu).
  - Source data contains numerical data. Count the frequency of each class, where the classes are defined by the first upper class limit and the class width. The number of classes can also be provided; if it is not provided, the number of classes is the smallest number such that all samples can be classified.
- Store Frequency Table in: Enter the column name (e.g. C1) or variable name for storing the categories and frequencies.