Three-dimensional data visualization method based on PCA-Radviz
A technology of three-dimensional data and data, applied in the directions of visual data mining, structured data retrieval, structured data browsing, etc., can solve problems such as weakening, failure to achieve optimal, weakening visualization effect, etc., to achieve good data visualization effect, accurate effect of decision
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[0034] In order to make the purpose, design ideas and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific examples and with reference to the accompanying drawings.
[0035] The invention provides a PCA-Radviz-based three-dimensional data visualization method, such as figure 1 As shown, it includes six main steps: 1) Standardize the original data, the original data uses Wine data to obtain the standardized matrix M; 2) Perform principal component analysis (PCA) on the standardized matrix M to obtain the The two-dimensional vector is a plane formed by the x and y axes; 3) calculate the cosine distances between the original dimension of the data and the x and y axes respectively, and obtain the angle and vector length of the original dimension projected on the plane; 4) use step 3) The obtained angles design a reasonable dimensional anchor point layout for the Radviz circle; 5) Project the data ...
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