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| author | wolffd |
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| date | Tue, 10 Feb 2015 15:05:51 +0000 |
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| 1 <html> | |
| 2 <head> | |
| 3 <title> | |
| 4 Netlab Reference Manual rbfderiv | |
| 5 </title> | |
| 6 </head> | |
| 7 <body> | |
| 8 <H1> rbfderiv | |
| 9 </H1> | |
| 10 <h2> | |
| 11 Purpose | |
| 12 </h2> | |
| 13 Evaluate derivatives of RBF network outputs with respect to weights. | |
| 14 | |
| 15 <p><h2> | |
| 16 Synopsis | |
| 17 </h2> | |
| 18 <PRE> | |
| 19 g = rbfderiv(net, x)</PRE> | |
| 20 | |
| 21 | |
| 22 <p><h2> | |
| 23 Description | |
| 24 </h2> | |
| 25 <CODE>g = rbfderiv(net, x)</CODE> takes a network data structure <CODE>net</CODE> | |
| 26 and a matrix of input vectors <CODE>x</CODE> and returns a three-index matrix | |
| 27 <CODE>g</CODE> whose <CODE>i</CODE>, <CODE>j</CODE>, <CODE>k</CODE> element contains the | |
| 28 derivative of network output <CODE>k</CODE> with respect to weight or bias | |
| 29 parameter <CODE>j</CODE> for input pattern <CODE>i</CODE>. The ordering of the | |
| 30 weight and bias parameters is defined by <CODE>rbfunpak</CODE>. This | |
| 31 function also takes into account any mask in the network data structure. | |
| 32 | |
| 33 <p><h2> | |
| 34 See Also | |
| 35 </h2> | |
| 36 <CODE><a href="rbf.htm">rbf</a></CODE>, <CODE><a href="rbfpak.htm">rbfpak</a></CODE>, <CODE><a href="rbfgrad.htm">rbfgrad</a></CODE>, <CODE><a href="rbfbkp.htm">rbfbkp</a></CODE><hr> | |
| 37 <b>Pages:</b> | |
| 38 <a href="index.htm">Index</a> | |
| 39 <hr> | |
| 40 <p>Copyright (c) Ian T Nabney (1996-9) | |
| 41 | |
| 42 | |
| 43 </body> | |
| 44 </html> |