bob.measure.far_threshold

bob.measure.far_threshold((object)negatives, (object)positives[, (float)far_value=0.001]) → float :

Computes the threshold such that the real FAR is at least the requested far_value.

Keyword parameters:

negatives

The impostor scores to be used for computing the FAR

positives

The client scores; ignored by this function

far_value

The FAR value where the threshold should be computed

Returns the computed threshold (float)