This metric measures how each data record differs from the model. If a data sample, Xl, is equal to a
linear combination of the columns of W, then the data sample is in the model subset, WW'Xl = Xl
and r(l) = 0. If a data sample, Xl , is orthogonal to W, then the data sample is completely outside the
model subset, WW'Xl = 0 and r(l) = 1. If a data sample, Xl , is equal to the sum of a linear
This metric measures how each data record differs from the model. If a data sample, Xl, is equal to alinear combination of the columns of W, then the data sample is in the model subset, WW'Xl = Xland r(l) = 0. If a data sample, Xl , is orthogonal to W, then the data sample is completely outside themodel subset, WW'Xl = 0 and r(l) = 1. If a data sample, Xl , is equal to the sum of a linear
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