SOM Toolbox | Online documentation | http://www.cis.hut.fi/projects/somtoolbox/ |

** [sC,old2new,newi] = som_clset(sC,action,par1,par2)
**

SOM_CLSET Create and/or set values in the som_clustering struct. first argument sC (struct) a som_clustering struct Z (matrix) size nb-1 x 3, as given by LINKAGE function base (vector) size dlen x 1, a partitioning of the data actions 'remove' removes the indicated clusters (par1: vector) 'add' add a cluster by making a combination of the indicated clusters (par1: vector) %'move' moves a child cluster (par1: scalar) from a parent to another % (par2: vector 1 x 2) 'merge' like 'add', followed by removing the indicated clusters (par1: vector) %'split' the indicated cluster (par1: scalar) is partitioned into indicated % parts (par2: vector), which are then added, while the indicated cluster % (par1) is removed 'coord' sets the coordinates of base clusters (par1: matrix nb x *), and recalculates coordinates of the derived clusters (by averaging base cluster coordinates) 'color' sets the colors of base clusters (par1: matrix nb x 3), and recalculates colors of the derived clusters (as averages of base cluster colors) sC .type (string) 'som_clustering' .name (string) Identifier for the clustering. .nb (scalar) Number of base clusters in the clustering. .base (vector) Size dlen x 1, the basic groups of data forming the base clusters, e.g. as a result of partitive clustering. Allowed values are 1:nb indicating the base cluster to which the data belongs to. NaN indicating that the data has been ignored in the clustering .nc (scalar) Number of clusters in the clustering (nb + derived clusters). .children (cellarray) size nc x 1, each cell gives the list of indeces of child clusters for the cluster .parent (vector) size nc x 1, the index of parent of each cluster (or zero if the cluster does not have a parent) .coord (matrix) size nc x *, visualization coordinates for each cluster By default the coordinates are set so that the base clusters are ordered on a line, and the position of each combined cluster is average of the base clusters that constitute it. .color (matrix) size nc x 3, color for each cluster. By default the colors are set so that the base clusters are ordered on a line, and then colors are assigned from the 'hsv' colormap to the base clusters. The color of each combined cluster is average as above. .cldist (string) Default cluster distance function.