Reduce property pro

../../../_images/reduce_property_panel.png

Added in version 3.14.0.

This modifier reduces a selected data property to a single value by applying a specified reduction operation over all data elements. For example, the modifier allows computing the mean value of a property across all particles.

The following reduction operations are available:

Reduction operation	Description
Minimum	Lowest value
Maximum	Highest value
Sum	Sum of all values
Non-zero count	Number of elements with non-zero values
Mean	Arithmetic mean
Median	Median value
Variance	Sample variance
Standard deviation	Sample standard deviation
Argmin	Zero-based index of the lowest value
Argmax	Zero-based index of the highest value

The modifier can operate on the following kinds of data elements:

If the selected input property has multiple components, the reduction operation is applied to each vector component individually.

The option Use only selected elements restricts the computation to the currently selected subset of elements. Note that the Argmin and Argmax operations still return an index into the full list of elements in this case.

The modifier stores the computed value as a global attribute, which can be accessed in the data inspector panel of OVITO.

The reduction is computed only for the current trajectory frame. To compute an average over multiple frames, you can additionally use the Time averaging modifier.