Hat Matrix
In statistics, the hat matrix H projects the observed values y of response variable to the predicted values ลท:
Read more about this topic: Hat Operator
Famous quotes containing the words hat and/or matrix:
“Few colors last; with their eternal thirst, time and light suck on them, and they bleach the black doctors hat until its grey like a dunces cap.”
—Franz Grillparzer (17911872)
“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 beings omniscience and omnipotence are assumed to be limited to the matrix.
If it has limits, it isnt omnipotent.
Exactly.... Cyberspace exists, insofar as it can be said to exist, by virtue of human agency.”
—William Gibson (b. 1948)