Example Data Set(s) for nnet, rpart
...i like the adult file, beacuse it is "real-life" and have a lot of cases for good splitting in train/test cases - ok you need more time, to train/test! http://www.ics.uci.edu/~mlearn/MLSummary.html Donated by Ron Kohavi Predicting whether income exceeds $50K/yr based on census data Documentation: On everything 48842 instances, 14 attributes (6 continuous and 8 nominal) Missing attribute values Originally listed as the "Census Income" Database. It was renamed because it is cited as the "Adult" database regards,christian ----- Original Message ----- From: "Ko-Kang Kevin Wang" <kwan022 at stat.auckland.ac.nz> To: "R Help" <r-help at stat.math.ethz.ch> Sent: Sunday, May 25, 2003 10:15 AM Subject: [R] Example Data Set(s) for nnet, rpart
Hi, I'm doing a presentation on Neural Networks and Tree-Based Models in two weeks, at the moment I'm looking for a data set to use in the presentation. What I would like to use is a good old data, like the Iris data, that is already known by every statisticians. MASS4 uses the cpus data in Chapter 8.10 and the Cushing's syndrome in Chapter 12.4. These two data sets plus the Iris data I have mentioned make three possible candidate data sets. Does anyone has a good recommendation as to which data set is better? While I'm at it. Is it technically correct to obtain (using residuals()) the residual sum of square from the nnet() and rpart() models. Then say one is better than the other based on the statistic? -- Cheers, Kevin --------------------------------------------------------------------------
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/* Time is the greatest teacher, unfortunately it kills its students */ -- Ko-Kang Kevin Wang Master of Science (MSc) Student SLC Tutor and Lab Demonstrator Department of Statistics University of Auckland New Zealand Homepage: http://www.stat.auckland.ac.nz/~kwan022 Ph: 373-7599 x88475 (City) x88480 (Tamaki)
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