Hi,
> On 29 May 2016, at 16:03, Roberto Pagliari <[email protected]> wrote:
>
> When using random forest regressor, the default scoring function is mse.
>
> In the case of multiple output, is the mse the sum over all output variables?
>
Yes, it is summed over all outputs.
> If so, are the output variables scaled, to make the mse comparable across
> different variables?
>
No, they aren’t scaled.
Best regards,
Arnaud Joly
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