If you think a non-linear relationship might exist between two columns, it
can be useful to raise a numeric column to some exponent. Exponentiation
(raising *x* to the power of *y*) covers many types of
transformations. For example, the following exponents correspond to familiar
operations:

- -1 computes the reciprocal
- 0.5 computes the square root
- 2 computes the square
- 3 computes the cube

To raise a numeric column to an exponent of interest:

- In the Summary view, select the column you wish to exponentiate
- Choose Column > Raise to Power, and select the desired exponent (or Otherâ€¦)
- If you selected Otherâ€¦, enter an exponent and press OK

By default, the name of the resulting column is reflects the underlying formula, but you can give the column a new name of your choosing. (Note that changing the name will not affect the formula used to compute the column.)

See also:

- Including higher-order terms of a numeric explanatory variable in a model
- Computing the logarithm of a numeric column