struct

`SushiAI::Train::Metric`

One named number a step produced, whatever it means.

Declared in: include/SushiAI/train/objective.hpp

So a driver can print "accuracy 92.40%" or "residual 3.1e-4" without knowing which it is - which is the difference between a driver that survives a non-classifier and one that does not.

Public attributes

std::string_view name

What to call it, e.g.

"accuracy".

double value = 0.0

Its value.

bool is_fraction = false

Whether it reads as a percentage rather than a bare number.