Dear David. I want to create generator that will give me the random value - lifespan of healthy human. So we can call it “Gompertz distribution” generator. I need it for learning purpose. So the random lifespan =e^(b0+E). b0= const, E -random value of extremal distribution. Which value of b0 you can recommend? Can you also advise the way for creating extremal distribution generator? I have a ready-made normal distribution generator. It can be used to make an extreme distribution generator. You need to take a sample of size n and take a smaller number from it. Am I right? Which mean and sigma of the normal distribution generator should I take? And what is the sample size to take?
Hey, I would either use the built in Gompertz generator in the VGAM library in R, or use inverse transform sampling: en.wikipedia.org/wiki/Inverse_transform_sampling which only requires sampling from a uniform distribution in [0.1]. I explain this method here: ua-cam.com/video/EyUVj3eeXyA/v-deo.html. Good luck.
@@MeerkatStatistics , I know that there are other ways to create this generator. But my goal is to create it by using this equition "lifespan =e^(b0+E)" (it is a part of education). And for some reason I cant find acceptable coeeficient b0 and parameters for extremal distribution. I try , but my final result doesnt look like “Gompertz distribution”. Maybe you can help?
Hi! Really helpfull video, I loved it. However, I still don´t really undertand how the AFT model works. I desperately need to comprehend it because I am doing a proyect about it and I have to finish it in order to finish my degree. Could we contact somehow in order for you to explain me the model? I am Spanish so sorry if there are spelling mistakes. Thank you very much!
Dear David. I want to create generator that will give me the random value - lifespan of healthy human. So we can call it “Gompertz distribution” generator. I need it for learning purpose. So the random lifespan =e^(b0+E). b0= const, E -random value of extremal distribution. Which value of b0 you can recommend? Can you also advise the way for creating extremal distribution generator? I have a ready-made normal distribution generator. It can be used to make an extreme distribution generator. You need to take a sample of size n and take a smaller number from it. Am I right? Which mean and sigma of the normal distribution generator should I take? And what is the sample size to take?
Hey, I would either use the built in Gompertz generator in the VGAM library in R, or use inverse transform sampling: en.wikipedia.org/wiki/Inverse_transform_sampling which only requires sampling from a uniform distribution in [0.1]. I explain this method here: ua-cam.com/video/EyUVj3eeXyA/v-deo.html. Good luck.
@@MeerkatStatistics , I know that there are other ways to create this generator. But my goal is to create it by using this equition "lifespan =e^(b0+E)" (it is a part of education). And for some reason I cant find acceptable coeeficient b0 and parameters for extremal distribution. I try , but my final result doesnt look like “Gompertz distribution”. Maybe you can help?
Hi! Really helpfull video, I loved it. However, I still don´t really undertand how the AFT model works. I desperately need to comprehend it because I am doing a proyect about it and I have to finish it in order to finish my degree. Could we contact somehow in order for you to explain me the model? I am Spanish so sorry if there are spelling mistakes. Thank you very much!
I can give you a private class. Contact me via david@meerkatstatistics.com