Re: [R] Confidence intervel for regression line

2013-01-14 Thread Rolf Turner
On 01/15/2013 09:17 AM, li li wrote: Hi all, For the simple linear regression, I want to find the input "x" value so that the lower confidnece limit is a specific number, say 0.2. In other words, I want to find the value of x so that the lower confidence bound crosses the horizontal line

[R] Confidence intervel for regression line

2013-01-14 Thread li li
Hi all, For the simple linear regression, I want to find the input "x" value so that the lower confidnece limit is a specific number, say 0.2. In other words, I want to find the value of x so that the lower confidence bound crosses the horizontal line 0.2. Is there a simple way (an R funct