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1 <html>
2 <head>
3 <title>
4 Netlab Reference Manual mdnprob
5 </title>
6 </head>
7 <body>
8 <H1> mdnprob
9 </H1>
10 <h2>
11 Purpose
12 </h2>
13 Computes the data probability likelihood for an MDN mixture structure.
14
15 <p><h2>
16 Synopsis
17 </h2>
18 <PRE>
19 prob = mdnprob(mixparams, t)
20 [prob, a] = mdnprob(mixparams, t)
21 </PRE>
22
23
24 <p><h2>
25 Description
26 </h2>
27 <CODE>prob = mdnprob(mixparams, t)</CODE> computes the probability <CODE>p(t)</CODE> of each
28 data vector in <CODE>t</CODE> under the Gaussian mixture model represented by the
29 corresponding entries in <CODE>mixparams</CODE>. Each row of <CODE>t</CODE> represents a
30 single vector.
31
32 <p><CODE>[prob, a] = mdnprob(mixparams, t)</CODE> also computes the activations
33 <CODE>a</CODE> (i.e. the probability <CODE>p(t|j)</CODE> of the data conditioned on
34 each component density) for a Gaussian mixture model.
35
36 <p><h2>
37 See Also
38 </h2>
39 <CODE><a href="mdnerr.htm">mdnerr</a></CODE>, <CODE><a href="mdnpost.htm">mdnpost</a></CODE><hr>
40 <b>Pages:</b>
41 <a href="index.htm">Index</a>
42 <hr>
43 <p>Copyright (c) Ian T Nabney (1996-9)
44 <p>David J Evans (1998)
45
46 </body>
47 </html>