TnKnn | R Documentation |
Calculate T_n using directed K-NN graph or minimum spanning tree (MST).
TnKnn(Y, X, k, Knn = 1)
Y |
a matrix of response (n by dy) |
X |
a matrix of predictors (n by dx) |
k |
a function k(y, y') of class |
Knn |
the number of K-nearest neighbor to use; or "MST". |
T_n is an estimate of E[E[k(Y_1,Y_1')|X]], with Y_1, Y_1' drawn iid from Y|X, given X.
For K-NN graph, ties will be broken at random. Algorithm finding the MST is implemented the package emstreeR
.
The algorithm returns a real number which is the value of Tn.
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