Could some kindly tell me if I am supposed to be getting the same test
statistic value with var.equal=TRUE and var.equal=FALSE in t.test ?
set.seed(1066)
x1 <- rnorm(50)
x2 <- rnorm(50)
t.test(x1, x2, var.equal=FALSE)$statistic # 0.5989774
t.test(x1, x2, var.equal=TRUE)$statistic # 0.5989774 ???
Adaikalavan Ramasamy <[EMAIL PROTECTED]> writes:
> Could some kindly tell me if I am supposed to be getting the same test
> statistic value with var.equal=TRUE and var.equal=FALSE in t.test ?
>
> set.seed(1066)
> x1 <- rnorm(50)
> x2 <- rnorm(50)
>
> t.test(x1, x2, var.equal=FALSE)$statistic # 0
Full_Name: Michael Hoffman
Version: 2.0.0-beta-20041001
OS: OSF1 V5.1
Submission from: (NULL) (193.62.199.8)
Hello. Building R 2.0.0-beta-20041001 on OSF1 V5.1 failed because the default
configure sets R_XTRA_CFLAGS to "-std1 -ieee_with_inexact." The bzip2 directory
includes C99
Peter, thank you! I forgot the to square root in calculating sp.
sp <- sqrt( ( (n1-1)*v1 + (n2-1)*v2 )/(n1 + n2 - 2) )
For several simulation runs, the test statistics from both tests are
remarkably similar (difference is less than 10e-16). I naively assumed
that the statistics value should be sl
inlining (and for which there is a configure test).
Note that feedback 3 days before release is too late for configuration
changes to be made.
On Fri, 1 Oct 2004 [EMAIL PROTECTED] wrote:
> Full_Name: Michael Hoffman
> Version: 2.0.0-beta-20041001
> OS: OSF1 V5.1
> Submission from: (NU
Apologies, I made an incorrect statement. The statistics from t-test
with difference variance assumptions are the same if both groups have
the same length. Sorry for troubling everyone again.
On Fri, 2004-10-01 at 13:56, Adaikalavan Ramasamy wrote:
> Peter, thank you! I forgot the to square root
On Fri, 1 Oct 2004, Prof Brian Ripley wrote:
What `C99 code' is that?
Specifically it uses the inline keyword. I do not believe that is
supported by a strict C89 compiler.
Please don't expect us to guess what you have in mind, for we
haven't a clue.
Please accept my apologies for an inadequate bug
I believe this occurs because the configure test for `inline' is not using
the R_XTRA_CFLAGS, which is a pervasive design problem (we have noted it
occurs with PIC flags as well). If you set -std1 in CFLAGS then it should
be used in the configure test which should conclude `inline' is not
allowe
If you set -std1 in CFLAGS then it should be used in the configure
test which should conclude `inline' is not allowed.
OK, I will do as you suggest. I should note that cc (version info
below) does support inline although not with -std1 so I'd prefer to
have any performance benefits of inline, if po
Have you looked at the 2.0.0 beta version?
It is hard for us to know what you are looking at, but I believe this was
fixed a while ago (but post 1.9.1). Better PDF cross-refs is one of the
changes in 2.0.0-to-be.
On Thu, 30 Sep 2004, Pfaff, Bernhard wrote:
> Apologies for cross postings or ma
(Moved from r-help to r-devel)
On Fri, 1 Oct 2004 10:00:05 -0400, "Liaw, Andy" <[EMAIL PROTECTED]>
wrote :
>Just to keep Valery from thinking that that web page can not be easily
>found: Go to www.r-project.org and click on `Developer Page' under the
>heading `R Project'.
>
>A suggestion (for
Dear Prof. Ripley,
thks for your response and no, I have not looked at 2.0.0 beta version;
blame on me, but I could not spare time by now for doing so; instead I
looked at:
http://cran.r-project.org/doc/manuals/fullrefman.pdf
as well as on my local one in: 'rw1091/doc/manual/refman.pdf'.
Hopeful
Eric Lecoutre wrote:
>
> Hi,
>
> For your lm problem, you could begin to create a virtual class that accepts
> either NULL or a lm object:
>
> > setClassUnion("mylm", c("NULL","lm"))
> > setClass("foo", representation(x="numeric", y="mylm"))
> > new("foo",x=1,y=NULL)
>
> Then, you have to ch
Would you consider the following patch to eval.c to allow compatibility
with RCC? (It's in the applyClosure function.)
@@ -432,6 +432,14 @@
SEXP f, a, tmp;
RCNTXT cntxt;
+#ifdef RCC
+SEXP comp;
+PROTECT(comp = getAttrib(op, install("RCC_CompiledSymbol")));
+if (comp != R_
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