Zim C-Class Autoparts Online Store, Harare (2025)

eBay Auctions-Boosting and Bagging. Using the eBay auction data (file eBayAuctions. x 1 s ) with variable Competitive as the target, partition the data into training (50 %), validation (30 %) and test sets (20 %). a. Run a classification trec, setting the minimum number of records in terminal nodes to 0 . Looking at the test set, what is the overall accuracy? What is the lift on the first decile? b. Run the same tree with the boosting option selected. For the test set, what is the overall accura

Competitive Auctions on eBay.com. The file eBayAuctions . xl s contains information on 1972 auctions that transacted on eBay.com during May-June 2004. The goal is to use these data to build a model that will classify auctions as competitive or noncompetitive. A competitive auction is defined as an auction with at least two bids placed on the item auctioned. The data include variables that describe the item (auction category). the seller (his/her eBay rating), and the auction terms that the selle

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