Toolbox Reference Manual - TOCSY - Toolbox for Complex Systems ...

crp
Methods of finding the neighbours/ of plot.
’maxnorm’ – Maximum norm.
’euclidean’ – Euclidean norm.
’minnorm’ – Minimum norm.
’nrmnorm’ – Euclidean norm between normalized vectors
(all vectors have the length one).
’rr’
– Maximum norm, fixed recurrence rate.
’fan’ – Fixed amount of nearest neighbours.
’inter’ – Interdependent neighbours.
’omatrix’ – Order matrix.
’opattern’ – Order patterns recurrence plot.
’distance’ – Distance coded matrix (global CRP, Euclidean norm).
Normalization of the data series.
’normalize’ – Normalization of the data.
’nonormalize’ – No normalization of the data.
Suppressing the GUI.
’gui’ – Creates the GUI and the output plot.
’nogui’ – Suppresses the GUI and the output plot.
’silent’ – Suppresses all output.
Limitations
Examples
Parameters not needed to be specified.
For higher speed in output the whole matrix of the recurrence plot is in
the work space – this limits the application of long data series. However,
with a little Matlab script, long data series can be handled too (cf. Examples).
a=sin((1:1000)*2*pi/67);
crp(a,’nonorm’,’euclidean’)
X=crp(a,2,50,.1,’nogui’);
spy(double(X))
b=sin(.01*([1:1000]*2*pi/67).^2);
crp(a,b,3,12,’distance’)
14 Reference Manual