Auxiliar functions. Not meant to be called from the user but from the error.TAO and the deltaE.TAO functions.
hfun(v,k)
phifun(v,k)
dphifun(v,k)Input value.
Threshold limit.
These functions return a numeric array with dimension equal to the dimension of v.
Pern<U+00ED>a Espinoza, A.V., Ordieres Mer<U+00E9>, J.B., Mart<U+00ED>nez de Pis<U+00F3>n, F.J., Gonz<U+00E1>lez Marcos, A. TAO-robust backpropagation learning algorithm. Neural Networks. Vol. 18, Issue 2, pp. 191--204, 2005. Simon Haykin. Neural Networks -- a Comprehensive Foundation. Prentice Hall, New Jersey, 2nd edition, 1999. ISBN 0-13-273350-1.