On 17-Nov-04 Angela Re wrote:
> Good evening,
> I'm going to use R to calculate the P-value for Pearson coefficient.
> Does it exist an already defined function?How can I do?Thanks for
> helping me.
> Angela
cor.test is what you need (according to your statement).
The Pearson correlation is the default coefficient.
Example:
u<-rnorm(10);v<-rnorm(10);X<-u+v;Y<-v;
cor.test(X,Y)
Pearson's product-moment correlation
data: X and Y
t = 2.9483, df = 8, p-value = 0.01847
alternative hypothesis: true correlation is not equal to 0
95 percent confidence interval:
0.1686027 0.9291072
sample estimates:
cor
0.7216238
enter
?cor.test
for details of the various different ways of using this function.
Hoping this helps,
Ted.
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Date: 17-Nov-04 Time: 19:28:43
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