XSORT FUNCTION MATLAB UPDATE

% Take that point out of its cluster and use it to create % Find the point furthest away from its current cluster. Warning(sprintf('Empty cluster created at iteration %d.',iter)) % Remove the empty cluster from any further processing % Deal with clusters that have just lost all their membersĮrror(sprintf('Empty cluster created at iteration %d.',iter)) = gcentroids(X, idx, changed, distance, Xsort, Xord) % Calculate the new cluster centroids and counts. % Find clusters that gained or lost members 找到获得的或者丢失的成员的分簇 Moved = moved(D((previdx(moved) -1)*n + moved) > d(moved))

XSORT FUNCTION MATLAB UPDATE

% Every point moved, every cluster will need an update % Determine closest cluster for each point and reassign points to clusters % the last step and move on to the single update phase % Test for a cycle: if objective is not decreased, back out % Can't do it first time through, there's no configuration yet. % Compute the total sum of distances for the current configuration. % Compute the distance from every point to each cluster centroidĭ(:,changed) = distfun(X, C(changed,:), distance, iter) % Begin phase one: batch reassignments 第一队段：分批赋值 I = strmatch(lower(display), strvcat('off','notify','final','iter')) Įrror(sprintf('Ambiguous ''display'' parameter value: %s.', display)) Įrror(sprintf('Unknown ''display'' parameter value: %s.', display)) Įrror('The ''display'' parameter value must be a string.') Įrror('The number of clusters must be greater than 1.') ĭisp(sprintf(' iter phase num sum'))

% sort 列元素按升序排列，Xord中存的是元素在原始矩阵中的列中对应的大小位置Įrror(sprintf('Ambiguous ''emptyaction'' parameter value: %s.', emptyact)) Įrror(sprintf('Unknown ''emptyaction'' parameter value: %s.', emptyact)) Įrror('The ''emptyaction'' parameter value must be a string.') Legend(.įunction = kmeans(X, k, varargin)Įrror(sprintf('Ambiguous ''distance'' parameter value: %s.', distance)) Įrror(sprintf('Unknown ''distance'' parameter value: %s.', distance))

Title 'Cluster Assignments and Centroids' Legend('Cluster 1','Cluster 2','Centroids'.

Xsort function matlab