Multivariate Pattern Analysis in Python

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# mvpa2.clfs.transerror.relative_rms_error

`mvpa2.clfs.transerror.``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

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