Predictive and Specialized Modeling • Association Analysis • Singular Value Decomposition • SVD Report Options
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SVD Report Options
The SVD red triangle menu contains the following options:
SVD Scatterplot Matrix
Shows or hides a scatterplot matrix of the item and transaction singular value decomposition vectors. You are prompted to select the size of the scatterplot matrix when you select this option. This scatterplot matrix enables you to visualize more than the first two dimensions of the singular value decomposition.
Topic Analysis, Rotated SVD
Performs a varimax rotated partial singular value decomposition of the item transaction matrix to produce groups of items called topics. You can select this option multiple times to find different numbers of topics. See Topic Analysis.
Cluster Items
Shows or hides a hierarchical clustering analysis of the items in the data. To the right of the dendrogram, there are options to set the number of clusters and save the clusters to a data table. For each item, this data table contains its frequency, the number of transactions that contain it, and its assigned cluster.
Cluster Transactions
Shows or hides a hierarchical clustering analysis of the transactions in the data. To the right of the dendrogram, there are options to set the number of clusters, save the clusters to a column in the data table, and show the transactions in a selected branch of the dendrogram plot.
Save Transaction Singular Vectors
Creates a data table that contains a number of singular vectors that you specify for each transaction. These are the left singular values in the transaction item matrix. See Singular Value Decomposition.
Save Item Singular Vectors
Creates a data table that contains a number of singular vectors that you specify for each item. These are the right singular values in the transaction item matrix. See Singular Value Decomposition.

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Help created on 7/12/2018