Significance of trend
I'm thinking you need to read up on what a p-value is: https://secure.wikimedia.org/wikipedia/en/wiki/P-value Michael Weylandt On Mon, Oct 31, 2011 at 2:51 PM, Muhammad Rahiz
<muhammad.rahiz at ouce.ox.ac.uk> wrote:
Hi everyone, I'm trying to determine the significance of a trendline. From my internet search months ago, I came across the following post. I modified tim and dat for simiplicity. tim <- 1:10 dat <- c(0.17, 1.09 ,0.11, 0.82, 0.23, 0.38 ,2.47 ,0.41 ,0.75, 1.44) fstat <- summary(lm(dat~tim))$fstatistic p.val <- 1-pf(fstat["value"],fstat["numdf"],fstat["dendf"]) The resultant p.value is 0.261. But I want to know if this value is significant and at what significance level. How do I check for it? Thanks -- Muhammad
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