origin_theory |
Use for mathematical quantities or physical quantities which are exact by definition or known from a trusted theory (but not calculated from a model).
This origin is exclusive (can not be combined with the other origins). |
origin_experiment |
The value is based on an experiment, and may usually be trusted within some small multiple of the given deviation. |
origin_calculation |
The value is based on a calculation and depends on the correctness of the model used. |
origin_systematics |
The value is based on systematics and may therefore have unexpected deviations. |
origin_other |
An origin different from the above.
This may have a specific meaning in client code or in parts of the code. |
origin_unknown |
Use if origin is unknown, uspecified, or other than the below.
This origin implies the other non-theoretic origins and is the least reliable. |