butools.ph.ImageFromPH¶

butools.ph.ImageFromPH()¶

Matlab:	ImageFromPH(alpha, A, outFileName, prec)
Mathematica:	ImageFromPH[alpha, A, outFileName, prec]
Python/Numpy:	ImageFromPH(alpha, A, outFileName, prec)

Depicts the given phase-type distribution, and either displays it or saves it to file.

Parameters:

alpha : matrix, shape (1,M) The initial probability vector of the phase-type distribution. A : matrix, shape (M,M) The transient generator matrix of the phase-type distribution. outFileName : string, optional If it is not provided, or equals to ‘display’, the image is displayed on the screen, otherwise it is written to the file. The file format is deduced from the file name. prec : double, optional Transition rates less then prec are considered to be zero and are left out from the image. The default value is 1e-13.

Notes

The ‘graphviz’ software must be installed and available in the path to use this feature.

Examples

For Matlab:

>>> [alpha,A]=RandomPH(3,8,7);
>>> ImageFromPH(alpha,A,'figure.pdf');
>>> ImageFromPH(alpha,A);