Hat Matrix
In statistics, the hat matrix H projects the observed values y of response variable to the predicted values ลท:
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Famous quotes containing the words hat and/or matrix:
“The doctor of Geneva stamped the sand
That lay impounding the Pacific swell,
Patted his stove-pipe hat and tugged his shawl.”
—Wallace Stevens (1879–1955)
““The matrix is God?”
“In a manner of speaking, although it would be more accurate ... to say that the matrix has a God, since this being’s omniscience and omnipotence are assumed to be limited to the matrix.”
“If it has limits, it isn’t omnipotent.”
“Exactly.... Cyberspace exists, insofar as it can be said to exist, by virtue of human agency.””
—William Gibson (b. 1948)