JeanValjean
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 Jul29 comment Combination problem with constraints @RobertIsrael Dear Robert, I need to refer to your solution in a working paper about OR. Please, may you address myself to a paper/book that contains your solution so that I can cite it? Thank you in advance. R. May29 comment Enumerate partitions of identical objects This answer completes the one that I accepted! From a practical point of view, I can say that it is very helpful. Then, +1! May24 comment Enumerate partitions of identical objects Do you have idea of any algorithm for generating the partitions? May23 comment Enumerate partitions of identical objects @anon The so called "intermediate function" $p(k,n)$ should be my target, but, looking at my example, I see that the table provided $p(3,5)=1$, while I have 2 possible partitions instead. What's wrong? May23 comment Enumerate partitions of identical objects @anon At a first look seems that you are right. I have to carefully read that page. Moreover, I also have to look for any algorithm inside that page for generating the partitions. Thanks, anyway! Feb14 comment Symbols and naming in confidence interval Good point. However, one can write $m_\alpha$ too. Moreover, some data is missing also from the use of the sample mean $\overline{X}$, e.g. the sample size. Feb14 comment Symbols and naming in confidence interval Thank you! And can you confirm that the whole term is called margin error? Feb13 comment Symbols and naming in confidence interval Yes you are right! I should be more formal. A 95% confidence level is a classic and I supposed a large sample so that T-student must not be used. I will edit the question, but the problem remains. Dec19 comment How to sample from a Gamma distribution with shape not integer Thank you so much! The book is great!