slisten, 你好,在 One is to choose how your hypothesis express, odds-ratio or two proportions (MAF in case and control group) 这一步中,是根据什么来判断是选择 odds-ratio或是two proportions呢?我检测是SNP,SNP是一定要选择 odds-ratio吗?
slisten老师,刚接触研究小白一枚,请教您,用这个软件进行流行病学现况调查研究,t检验或者非参数秩和检验的sample size怎么算呢, α power m σ δ这几个值怎么确定呢?是先算power再算sample size吗?非常感谢!
slistenJust double your n because allelic association power analysis is based on allele count (2n) but not individual count (n).
请问下Power and Sample size Program是什么公司的啊,怎么表明来源啊,谢谢