I read through Harrington and Fleming (1982) but it is beyond my statistical comprehension. I have survival data for insects that have a very finite expiration date. I'm trying to test for differences in survival distributions between different groups. I understand that the medical field is most often dealing with censored data and that survival analysis, at least in the package survival, is largely built around these conventions and differs from a classical biological perspective. For example, for lifetable analysis of insects there is often no need to estimate survival using a Kaplan-Meir estimate because it is relatively easy to follow a cohort of individuals through the entire course of life. Thus I question the appropriateness of using survdiff in my analysis; I have exact data yet I would be testing on the Kaplan-Meir estimate of these data in survdiff. Thanks for any help.
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