Data Mining: STATISTICA
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1 Data Mining: STATISTICA Outline Prepare the data Classification and regression 1
2 Prepare the Data Statistica can read from Excel,.txt and many other types of files Compared with WEKA, Statistica is much easier in terms of data preparing Open an Excel File Click the Import selected sheet to Spreadsheet Select the desired Excel sheet where your data is stored Get variable names from the first row 2
3 Open an Excel File Change variable type Open an Excel File Change variable type 3
4 Classification and Regression C&RT Boosting tree Neural Networks C&RT Classification Iris data is used as a example data set 4
5 C&RT Classification Click Data Mining menu and find the Interactive Trees C&RT Classification View the final tree and understand the results 5
6 C&RT---Regression Use the CPU data set and select the regression analysis Don t check it Regression tree structure C&RT---Regression 6
7 C&RT---Regression Predicted values Boosting tree Classification In Data Mining menu and find the Boosted Trees 7
8 Boosting tree Classification See the results and predictor s importance Boosting tree Classification See the results and predictor s importance 8
9 CPU data set Boosting tree Regression Boosting tree Regression See the results and predictor s importance Predicted values 9
10 Boosting tree Regression See the results of Observed values vs. Predicted values Boosting tree Regression See the results and predictor s importance 10
11 Neural Networks Classification In Data Mining menu and find the Automated Neural Networks Neural Networks Classification Choose Classification, then select variables 11
12 Neural Networks Classification Statistica will try a set of different neural networks and keep the best ones Neural Networks Classification See the classification results 12
13 Neural Networks Classification See the classification results---predictions Neural Networks Classification See the classification results---predictions 13
14 Neural Networks Classification See the classification results---confusion matrix Neural Networks Regression CPU data set 14
15 Neural Networks Regression CPU data set, select variables Neural Networks Regression Training and results 15
16 Neural Networks Regression Predictions Neural Networks Regression Some statistics about the predictions 16
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