GaussClass:

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Gaussian classifier

Source: MCLDBufferUGens.sc

A Gaussian classifier, which classifies an input vector as belonging to one of the gaussian distributions defined in a specially-formatted Buffer.

The Buffer should be single-channel. Its exact format is specified towards the bottom of this file. If you have the MathLib quark installed then you can use the convenience function GaussClass.classesToFloatArray() to create a FloatArray suitable for loading to a Buffer.

in |
input signal, a multichannel signal specifying a co-ordinate in the space (i.e. a vector). |

bufnum |
the buffer in which the shapes and weights of the gaussian components are specified. |

gate |
the classifier is only active when this is greater than 0 (otherwise, previous value is held constant). Its default value is 1. |

The following example creates two-dimensional data with three classes:

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THE FORMAT OF THE BUFFER:

The Buffer should be single-channel and hold data in the following order, once for each class:

- N floats: the mean vector;

- N*N floats: the inverse of the covariance matrix; and

- 1 float: the weight of the component divided by the square root of the determinant of the covariance matrix.

N is the dimensionality of the data space. The length of the Buffer is therefore C * (N*N + N + 1). GaussClass.kr will determine the number of classes from the size of the Buffer.

helpfile source: /usr/local/share/SuperCollider/Extensions/SC3plugins/MCLDUGens/HelpSource/Classes/GaussClass.schelp

link::Classes/GaussClass::

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