[R] Comparing samples with widely different uncertainties

2010-08-25 Thread Sandy Small
Hi This is probably more of a statistics question than a specific R question, although I will be using R and need to know how to solve the problem in R. I have several sets of data (ejection fraction measurements) taken in various ways from the same set of (~400) patients (so it is paired data).

Re: [R] Comparing samples with widely different uncertainties

2010-08-25 Thread peter dalgaard
On Aug 25, 2010, at 3:57 PM, Sandy Small wrote: Hi This is probably more of a statistics question than a specific R question, although I will be using R and need to know how to solve the problem in R. I have several sets of data (ejection fraction measurements) taken in various ways from

Re: [R] Comparing samples with widely different uncertainties

2010-08-25 Thread Marc Schwartz
On Aug 25, 2010, at 8:57 AM, Sandy Small wrote: Hi This is probably more of a statistics question than a specific R question, although I will be using R and need to know how to solve the problem in R. I have several sets of data (ejection fraction measurements) taken in various ways from