统计分析

zhufufu

１，样本大小
２，相关性, 相关系数
３，Univariate and multivariate one-factor analyses of variance

这几点没弄明白来算probability就是个joke. 用５个样本来算出８０％的可能, 相关性是扯蛋。忽视了变量间的关系来说相关是无知, 例如黄金和指数有正副相关，但原因是受其他因素的影响，断不可仅仅考虑两者

ranchgirl

Thanks, can you give an example of a correct analysis, at least you think it is correct.

Thanks a lot!

Alchemist

TA is not science.

nirvanawang

回复 1# zhufufu


    Agree totally. but sometimes it's hard to judge whether the sample is big enough or two stocks are related or not. Samples in different market conditions may be more important than actual sample size. As to related or not, in some markets, oil is related to airline sometimes they are not. How to solve these problems?  Hopefully big cow in this forum can shed some light

sooners

回复 1# zhufufu