Dear R developers,
Currently many (all?) test functions in R describe the alternative
hypothesis, but not the the null hypothesis being tested. For example,
cor.test:
require(boot)
data(mtcars)
with(mtcars, cor.test(mpg, wt, met=kendall))
Kendall's rank correlation tau
data: mpg and
On 16-Aug-09 10:38:40, Liviu Andronic wrote:
Dear R developers,
Currently many (all?) test functions in R describe the alternative
hypothesis, but not the the null hypothesis being tested. For example,
cor.test:
require(boot)
data(mtcars)
with(mtcars, cor.test(mpg, wt, met=kendall))
Hello,
On 8/16/09, Ted Harding ted.hard...@manchester.ac.uk wrote:
I don't know about *compelling* reasons! But (as a general rule)
if the Alternative Hyptohesis is stated, then the Null Hypothesis
is simply its negation. So, in your example, you can infer
H0: true tau equals 0
Ha:
On 16-Aug-09 14:06:18, Liviu Andronic wrote:
Hello,
On 8/16/09, Ted Harding ted.hard...@manchester.ac.uk wrote:
I don't know about *compelling* reasons! But (as a general rule)
if the Alternative Hyptohesis is stated, then the Null Hypothesis
is simply its negation. So, in your example, you
On 8/16/09, Ted Harding ted.hard...@manchester.ac.uk wrote:
Oh, I had a slightly different H0 in mind. In the given example,
cor.test(..., met=kendall) would test H0: x and y are independent,
but cor.test(..., met=pearson) would test: H0: x and y are not
correlated (or `are linearly
Justin,
I suggest you try to remove your malformed eurodist and use the one in R.
The svn logs show no changes in eurodist since 2005 when 'r' was added to
'Gibralta' (it still has all the wrong distances which perhaps go back to
the poor quality of Cambridge Encyclopaedia). I also installed R
R CMD check --use-valgrind packagename used to run valgrind on the
tests in the tests directory of the package. But it seems to have stopped.
R-2.9.1 doesn't -- at least on my box -- and neither does R-2.10.0 (devel).
I am not sure when this stopped. I think 2.8.x did this. The only old
R I
