Calculating constant hazards in exponential survival distributions
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I am trying to do a survival anapysis by fitting exponential model. I was told that I shouldn't just fit my survival data to a exponential model. Instead, I should aim to calculate the hazard fundtion, which is λ in exponential distribution. My data will be like 10 surviving time, for example: 4,4,5,7,7,7,9,9,10,12.
My question is how do I fit the exponential survival distribution and calculate hazard. And what function should I use?
I am new to matlab and I appriciate any help and suggestions.
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Accepted Answer
Jeff Miller
on 25 Aug 2020
The exponential distribution is a one-parameter distribution, so all you can do is estimate that parameter. Once you have that estimate, everything else is also determined, including the hazard function. So you could think of "estimating the parameter" as the same thing as "estimating the hazard function".
For the maximum likelihood estimator of the parameter and a bias-corrected estimator, check Wikipedia
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Jeff Miller
on 27 Aug 2020
Edited: Jeff Miller
on 27 Aug 2020
You are welcome. Please accept the answer if your questions have been resolved.
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