EvalationResult.calculate_metrics() returns numpy.float32 instead of float as metric value for SAS

[tstadel]

Describe the bug
EvalutionResult.calculate_metrics() returns sas metric as numpy.float32 type and not as float.

Expected behavior
Return type is float as the type hint of EvalutionResult.calculate_metrics().

Additional context
numpy.float32 cannot be used for storage in databases, e.g. with sqlalchemy.

To Reproduce

1. run tutorial 5 with sas metrics
2. look for sas metrics value type.

FAQ Check

• Have you had a look at our new FAQ page?

System:

• Haystack version (commit or version number): 1.10

[julian-risch]

Hi @tstadel would you like to contribute a PR for this issue yourself or should our core engineering team take over? 🙂 At first glance, it looks like a small issue. Either way, just let me know. Thank you!

[tstadel]

@julian-risch I have to check again, because it seems like all metric values are returned as numpy types.

[tstadel]

Yes, and for some SAS models it might be numpy.float32 and not numpy.64. So let's consolidate all outputs of calculate_metrics() to standard python float.