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...aining only 0 in R<http://stackoverflow.com/questions/11105234/filtering-out-rows-in-a-matrix-containing-only-0-in-r> Maybe not relevant or you likely have already been through it, but I found this 16 1/2 hr audiobook to be quite worthwhile: *Antifragile: Things That Gain from Disorder,* by Nassim Nicholas TALEB. Wikipedia Bio: http://en.wikipedia.org/wiki/Nassim_Nicholas_Taleb Book Review: http://continuations.com/post/51065634453/antifragile-by-nassim-taleb-book-review. Also amazed by the huge bibliography. Also, *Antifragile by Nassim Taleb: review at: http://www.telegraph.co.uk/culture/b...

Hi, I am working on a multivariate linear regression of the form y = Ax. I am seeing a great dispersion of y w.r.t x. For example, the correlations between y and x are very small, even after using some typical transformations like log, power. I tried with simple linear regression, robust regression and ace and avas package in R (or splus). I didn't see an improvement in the fit and