genetic statistics

2001-04-11 Thread James Cui
Dear members: I am wondering (1) if there is genetic statistics or genetic epidemiology discussion group exist; (2) I am going to analyse data from twins observed in two time periods (and at the baseline), to study whether there is genetic contribution to a continuous trait response to the

Re: Correlation of vectors

2001-04-11 Thread Jos Jansen
If it makes sense to represent your data as 4 column vectors, say y1 and y2 for the first set and x1 and x2 for the second, then you may consider to calculate the canonical correlation between (y1,y2) and (x1,x2). Jos Jansen "Peter J. Wahle" [EMAIL PROTECTED] wrote in message WcQA6.745$[EMAIL

Re: genetic statistics

2001-04-11 Thread E. Wijsman
Your best bet for a newsgroup is: bionet.molbio.gene-linkage. While the title has "linkage" in it, the people who read reply to it are usually well-versed in a variety of different statistical genetic approaches to analysis of genetic data. The signal:noise ratio is very low (as are total

Re: normal approx. to binomial

2001-04-11 Thread Herman Rubin
In article [EMAIL PROTECTED], Jay Warner [EMAIL PROTECTED] wrote: one tech issue, one thinking issue, I believe. 1) Tech: if np _and_ n(1-p) are 5, the distribution of binomial observations is considered 'close enough' to Normal. So 'large n' is OK, but fails when p, the p(event), gets