Re: [R] Calculate t.test for a matrix

2012-04-14 Thread David Winsemius
On Apr 14, 2012, at 4:44 PM, Junyu Lee wrote: Hello everyone, I posted a question this morning, when I got replies, I realized that the data I posted was messy. So I am going to re-post It's still a mess. Here is my data frame: Learn to use dput: dfrm <- structure(list(group = s

Re: [R] Calculate t.test for a matrix

2012-04-14 Thread Junyu Lee
Hello everyone, I posted a question this morning, when I got replies, I realized that the data I posted was messy. So I am going to re-post it. Here is my data frame: groupgene1 gene2 Control 28.9776 9.9355 Control 28.9

Re: [R] Calculate t.test for a matrix

2012-04-14 Thread David Winsemius
On Apr 14, 2012, at 11:40 AM, Junyu Lee wrote: Hello everyone, I have a data frame (tt), see below (I only show 2 genes, actually I have a lot): Shouldn't you be working with a statistician to get advice about how to handle the multiple comparison issues you are most certainly facing?