# Focus Processing Options

Specify what operation should be performed on the selected goal.

The following processing steps are common to all goals.

No processing
Where the focus is non-complex, no processing steps are required. In order to consider the focus directly, the No processing option is provided.
(1)
Real/Imaginary/Magnitude/Phase
Selects a specific component of a complex focus type. For an array, the complex component of each array element is taken, delivering a non-complex array.
(2)
Unwrap
Unwraps a phase component. For a phase array, the whole array is considered in the unwrap process. This operator is applied directly after selecting Phase.
(3) $x\to \text{unwrap}\left(x\right)$
Absolute value
Takes the absolute value. For an array, the absolute value of each element is taken.
(4)
Average/Minimum/Maximum
Finds the average, minimum or maximum value of an array. This has no effect on a single value.
(5)
Normalise
Normalises to the largest value in an array. For a single value, “1” will be returned.
(6)
Log
Takes the base-10 logarithm. For an array, the base-10 logarithm of each element of the array is taken. This operator is only available for non-complex values or arrays.
(7) $x\to {\mathrm{log}}_{10}\left(x\right)$
Offset
Adds a specified non-complex value. For an array, the value is added to each element of the array. This operator is only available for non-complex values or arrays.
(8) $x\to x+n$
Scale
Multiplies by a specified scale factor. For an array, each element of the array is multiplied by the scaling factor.
(9) $x\to nx$
Exponent
Applies an exponent. For an array of values, the exponent of each value in the array is taken.
(10)
Undefined
When a processing step is modified and the step becomes invalid, the processing step reverts to an Undefined state. Delete or redefine all Undefined steps before applying the changes to the goal.