How can I make a custom metric that return more than 1 number?

[narvind2003 (Arvind Nagaraj)]

You’re welcome!

Passing lists is a bit tricky. See my earlier comment about this in another thread:

@narvind2003

So in the stepper class, I modified the step and evaluate methods where self.m is called.

If len(xs) > 1 pass [xs] else pass xs to the model.

The change is in model.py:

    def step(self, xs, y, epoch):
        xtra = []
        output = self.m(*xs)

becomes:

    def step(self, xs, y, epoch):
        xtra = []
        if len(xs)>1 :output = self.m([*xs])
        else: output = self.m(*xs)

And the same change in the evaluate method as well.