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statistical reasons
On Monday, April 3, 2017 at 12:35:10 PM UTC+3, Jonathan Rosenblatt wrote:
Are you grouping for statistical reasons (power/SNR), or computational reasons?
On Mon, Apr 3, 2017 at 11:52 AM, Adi Milrad <adim...@gmail.com> wrote:
Hi,I have a categorical variable - country, and I want to use it as predicting variable in logistic regression in order to predict Click Through Rate.I have more than 200 countries , most of them have less than percent from total impressions, one of them is 86% from impressions.Can you recommend a way in R to narrow number of countries to about 10 categories ? according to their Click Through Rate (value of predicted variable) or according to number of impressions (the country share).Thanks !
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----Jonathan RosenblattDept. of Industrial Engineering and ManagementBen Gurion University of the Negev
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