search for: icontact

...e lifetime of a customer who signs up on Jan 1 and cancels on Jan 2 is 1. My question is: Why are these two so different? How do I know which is right? The call that I'm making to produce the model is: hazardV08 <- muhaz(nmc,s,max.time=max(nmc)) -- Alan Cox Director, User Experience iContact, Corp. p 919.459.1038 f 919.287.2475

...now that the average lifetime is approx. 35. ?Is there anyway that I can learn that from looking only haz? ? Does the process for doing this differ based on whether the lifetimes are generated from a well-known distribution? Thanks for your help, Alan -- Alan Cox Director, User Experience iContact, Corp. p 919.459.1038 f 919.287.2475

...fe way to extend the survivor curve and estimate at what time we'll hit 50%? We started a new program 3.5 months ago, and I believe that this set of accounts behaves differently than the rest of our company's accounts. Thanks very much, Alan -- Alan Cox Director, User Experience iContact, Corp. p 919.459.1038 f 919.287.2475 [[alternative HTML version deleted]]

...that this is a common phenomenon. When I plot the two hazard rate curves, haz1 looks very different than haz2, but I'd like to see if it's different enough. ?How can I go about creating confidence intervals and plotting them? Thanks, Alan -- Alan Cox Director, User Experience iContact, Corp. p 919.459.1038 f 919.287.2475

Is there a simple gem / engine / app for sending a sequence of emails - something like iContact or ConstantContact. For instance, I want to send an email when someone registers on my site, then 3 days later, then 10 days later. That''s a rather simple case - would be nice to have some more complex workflow but this would do for now. This would not be too difficult to implement, bu...

Dear List, I registered for the useR conference in Rennes today; half an hour after the confirmation I received a first "requested newsletter" from a company selling a product named "Inference for R". This coincidence might be spurious. Or not, depending on frequency. Dieter

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