matlab.rar_matlab 二叉树_matlab二叉树_二叉树_二叉树 matlab_二叉树MATLAB

Statistics Toolbox dendrogram Plot dendrogram graphs SyntaxH = dendrogram(Z) H = dendrogram(Z,p) [H,T] = dendrogram(...) [H,T,perm] = dendrogram(...) [...] = dendrogram(...,'colorthreshold',t) [...] = dendrogram(...,'orientation','orient') [...] = dendrogram(...,'labels', S) DescriptionH = dendrogram(Z) generates a dendrogram plot of the hierarchical, binary cluster tree represented by Z. Z is an (m-1)-by-3 matrix, generated by the linkage function, where m is the number of objects in the original data set. The output, H, is a vector of handles to the lines in the dendrogram. A dendrogram consists of many U-shaped lines connecting objects in a hierarchical tree. The height of each U represents the distance between the two objects being connected. H = dendrogram(Z,p) generates a dendrogram with only the top p nodes. By default, dendrogram uses 30 as the value of p. When there are more than 30 initial nodes, a dendrogram may look crowded. To display every node, set p = 0. [H,T] = dendrogram(...) generates a dendrogram and returns T, a vector of length m that contains the leaf node number for each object in the original data set. T is useful when p is less than the total number of objects, so some leaf nodes in the display correspond to multiple objects. For example, to find out which objects are contained in leaf node k of the dendrogram, use find(T==k). When there are fewer than p objects in the original data, all objects are displayed in the dendrogram. In this case, T is the identity map, i.e., T = (1:m)', where each node contains only a single object. [H,T,perm] = dendrogram(...) generates a dendrogram and returns the permutation vector of the node labels of the leaves of the dendrogram. perm is ordered from left to right on a horizontal dendrogram and bottom to top for a vertical dendrogram. [...] = dendrogram(...,'colorthreshold',t) assigns a unique color to each group of nodes in the dendrogram where the linkage is less than the threshold t. t is a value in the interval [0,max(Z(:,3))]. Setting t to the string 'default' is the same as t = .7(max(Z(:,3))). 0 is the same as not specifying 'colorthreshold'. The value max(Z(:,3)) treats the entire tree as one group and colors it all one color. [...] = dendrogram(...,'orientation','orient') orients the dendrogram within the figure window. The options for 'orient' are 'top'Top to bottom (default)'bottom'Bottom to top'left'Left to right'right'Right to left[...] = dendrogram(...,'labels', S) accepts a character array or cell array of strings S with one label for each observation. Any leaves in the tree containing a single observation are labeled with that observation's label. Example X= rand(100,2); Y= pdist(X,'cityblock'); Z= linkage(Y,'average'); [H,T] = dendrogram(Z,'colorthreshold','default'); find(T==20) ans = 20 49 62 65 73 96 This output indicates that leaf node 20 in the dendrogram contains the original data points 20, 49, 62, 65, 73, and 96.