mvpa2.misc.errorfx.relative_rms_error¶
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mvpa2.misc.errorfx.
relative_rms_error
(predicted, target)¶ Ratio between RMSE and root mean power of target output.
So it can be considered as a scaled RMSE – perfect reconstruction has values near 0, while no reconstruction has values around 1.0. Word of caution – it is not commutative, ie exchange of predicted and target might lead to completely different answers