Metrics
See also the list of metrics.
Introduction
A metric is a number measuring a particular facet of animal food production. By having many metrics, we can divide up concerns in a granular way. Any user can then combine these metrics to form new metrics according to their own preferences or values.
There are currently two kinds of metrics: basic metrics and derived metrics.
Overview
Basic metrics
A basic metric simply assigns a single numerical value to each type of animal food. The meaning of the number is up to the person who creates the metric, and should be explained in its description.
Derived metrics
A derived metric is a formula that combines other metrics into a single number. The other metrics can be basic metrics or derived metrics, that is, any total metric. Metrics can be added, multiplied, weighed and averaged, exponentiated, and so on.
A derived metric depends on other metrics, so if they are changed, say in response to new or updated information, the derived metric will change as well.