CREATEDATA |
Interactive data generator.
Synopsis:
createdata
createdata('finite')
createdata('finite',num_classes)
createdata('gauss')
createdata('gauss',num_distrib)
Description:
createdata or createdata('finite') invokes an interactive generator
of finite point sets in 2D. The generated points can be assigned
into two classes (1,2). The generator saves data to a
specified file. The file has the following fields:
X [2 x num_data] 2D vectors.
y [1 x num_data] Assigned labels.
createdata('finite',num_classes) when num_classes is specified
then the points can be assigned labels from 1 to num_classes.
createdata('gauss') invokes an interactive generator of
Gaussian distributions. A user can specify mean vector and
covariance matrix. The generator saves data to a file
having the following fields:
Mean [2 x ncomp] Mean vectors.
Cov [2 x 2 x ncomp] Covariance matrices.
y [1 x ncomp] Assigned labels.
createdata('gauss',num_classes) when num_classes is specified
then the distributions can be assigned labels from 1 to num_classes.
The data generator is controlled by mouse:
Left button ... creates a new point or Gaussian.
Right button ... erases the focused point or Gaussian.
In the case of generating Gaussians left button double-click makes
selected Gaussian focused. The covariance matrix of focused
Gaussian can be modified.
About: Statistical Pattern Recognition Toolbox
(C) 1999-2003, Written by Vojtech Franc and Vaclav Hlavac
Czech Technical University Prague
Faculty of Electrical Engineering
Center for Machine Perception
Modifications:
01-may-2004, VF
13-Feb-2003, VF