Syntax

[cId,center] = calcCluster(vec,'halfwidth',2.5*degree)
[cId,center] = calcCluster(vec,'numCluster',n,'method','hierarchical')
[cId,center] = calcCluster(vec,'maxAngle',omega,'method','hierarchical')

Input

`vec`	`vector3d`
`n`	`number of clusters`
`omega`	`maximum angle`

Output

`cId`	`list of clusters ids`
`center`	`center of the clusters`

Options

method classix (default) | hierarchical | matlab

Example

%generate vector data of up to 5 clusters
plottingConvention.default('y↑→x');
vin = vector3d.rand(5);
sF2 = calcDensity(vin,'halfwidth',10*degree);
v   = sF2.discreteSample(800);

find clusters and their centers

[cId,center] = calcCluster(v,'numCluster',5,'method','hierarchical');

visualize the result

plot(v,cId)
hold on
plot(center,'add2all','MarkerSize',10,'MarkerFaceColor','k')
hold off

%check the accuracy of the recomputed centers
min(angle_outer(center,vin)./degree)

ans =
   10.4473    0.7218    0.3485    0.6109   12.2760

Citing this page. This page is part of the documentation of MTEX, a free and open source MATLAB toolbox for analyzing and modeling crystallographic textures. It was written by The MTEX Developers and is published at https://mtex-toolbox.github.io/vector3d.calcCluster.html. If you use MTEX, or reuse text or figures from this page, in your research, please cite

F. Bachmann, R. Hielscher, H. Schaeben: Texture Analysis with MTEX - Free and Open Source Software Toolbox, Solid State Phenomena 160 (2010), 63-68. 10.4028/www.scientific.net/SSP.160.63

BibTeX

@article{bachmann2010mtex,
  author  = {F. Bachmann and R. Hielscher and H. Schaeben},
  title   = {Texture Analysis with MTEX - Free and Open Source Software Toolbox},
  journal = {Solid State Phenomena},
  volume  = {160},
  pages   = {63-68},
  year    = {2010},
  doi     = {10.4028/www.scientific.net/SSP.160.63},
  url     = {https://doi.org/10.4028/www.scientific.net/SSP.160.63}
}

Other papers describing specific MTEX methods are listed under Publications — please cite the one that best fits your application. The MTEX source code is licensed under the GNU General Public License v2.0; the text and figures of this documentation are licensed under CC BY 4.0, which permits reuse — including by automated systems — provided The MTEX Developers and this page are credited.