# Tagged Questions

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### Lifetime estimate of components where only a fraction of them have failed so far?

I am attempting to calculate how long a component is expected to last and ultimately how many working components will be left at a future point in time. 800 have failed and 2200 are still working. I ...
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### Regression model for predicting life expectancy

I have average life expectancy at birth data for an 8 year period and I would like to use that 8 year period to predict the trend for average life expectancy for the next 5 years. I would then like to ...
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### Estimating expected lifetime from hazard ratio and estimated base hazard function

Apologies if this is a basic question, I am not very familiar with survival analysis ... I have trained a gradient boosted Cox proportional hazards model in R, and have been able to obtain reasonable ...
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### Getting expected value of future value with time varying data (credit card revolving and fee data) . Customer lifetime value

I have a credit card data and that contains monthly amount of revolving and amount of fee for each customer. As a bank perspective, I want to get the expected value of future revolving amount and fee ...
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### Tests behind comparison of a sample's survival to that of the general population

In the literature there are often reports of comparisons of a sample's survival to that of the general population. Life and mortality tables are cited however the tests and statistical procedures ...
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### Obtaining and defining a ratetable from a Cox P-H model for use in survexp

I'm currently trying to make some simple models of client lifetime value. I'm using the following simplified formula for some survival analysis on client values ...
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### Life expectancy of home appliances

I hope this is the right place where to formulate this question. In a basic course in statistics we learn how to calculate the mean life time of an electronic device. Home appliances are electronic ...