Daniel@0: Daniel@0: Daniel@0: Daniel@0: Netlab Reference Manual hesschek Daniel@0: Daniel@0: Daniel@0: Daniel@0:

hesschek Daniel@0:

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Daniel@0: Purpose Daniel@0:

Daniel@0: Use central differences to confirm correct evaluation of Hessian matrix. Daniel@0: Daniel@0:

Daniel@0: Synopsis Daniel@0:

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Daniel@0: hesschek(net, x, t)
Daniel@0: h = hesschek(net, x, t)

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Daniel@0: Description Daniel@0:

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hesschek(net, x, t) takes a network data structure net, together Daniel@0: with input and target data matrices x and t, and compares Daniel@0: the evaluation of the Hessian matrix using the function nethess Daniel@0: and using central differences with the function neterr. Daniel@0: Daniel@0:

The optional return value h is the Hessian computed using Daniel@0: nethess. Daniel@0: Daniel@0:

Daniel@0: See Also Daniel@0:

Daniel@0: nethess, neterr

Daniel@0: Pages: Daniel@0: Index Daniel@0:

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