Displaying 11 results from an estimated 11 matches similar to: "Excel TDIST and TINV"
2001 May 07
1
qt with ncp?
Does anybody has a function or idea how to calculate qt with a noncentrality
parameter? I'm porting a SAS-macro for equivalence (Wellek, 1994 TT2ST) to R
and it seems that I need this to calculate tinv (SAS-command, I hope that
this is R's qt,...I get the SAS-macro manual next week).
thanks
Peter
--
P.Malewski, Limmerstr.47, 30451 Hannover, 0511-2135008
At work:
2001 Nov 29
1
errors in help("TDist")?
Dear all,
The help page on the t distribution says:
The most used applications are power calculations for t-tests:
Let T= (mX - m0) / (S/sqrt(n)) where mX is the `mean' and S the
sample standard deviation (`sd') of X_1,X_2,...,X_n which are
i.i.d. N(mu,sigma^2). Then T is distributed as non-centrally t
with `df'= n-1 degrees of freedom and non-centrality
2014 Sep 30
1
Inverse Student t-value
Dear Sir/Madam,
I am trying to use calculation for two-tailed inverse of the student`s
t-distribution function presented by Excel functions like
=TINV(probability, deg_freedom).
For instance: The Excel function =TINV(0.0000408831,1221) = returns
4.0891672.
Would you like to show me a manual calculation for this?
Appreciate your helps in advance.
Cheers! Andre
[[alternative HTML version
2002 Nov 15
2
Samba "unable to validate password" error
I sent the following to sunmanagers@sunmanagers.org and I'm also forwarding
this to the samba list. I hope you can help:
------------- Begin Forwarded Message -------------
I have an emergency and am at the end of my resources and hope you can help.
I'm a samba newbie and hope you can point me to an answer.
Our Samba2.0.5 server is a Sun Enterprise 450 (Solaris 7). Our PDC
is an NT
2017 Dec 14
0
Distributions for gbm models
On page 409 of "Applied Predictive Modeling" by Max Kuhn, it states
that the gbm function can accomodate only two class problems when
referring to the distribution parameter.
>From gbm help re: the distribution parameter:
Currently available options are "gaussian" (squared error),
"laplace" (absolute loss), "tdist" (t-distribution
2005 Jun 24
1
interpreting Weibull survival regression
Hi,
I was wondering if someone can help me
interpret the results of running
weibreg.
I run the following and get the
following R output.
> weibreg(Surv(time, censor)~covar)
fit$fail = 0
Call:
weibreg(formula = Surv(time,
censor)~covar)
Covariate Mean Coef
Rel.Risk L-R p Wald p
covar 319.880 -0.002 0.998
0.000
log(scale) 0.000 8.239
2006 Dec 19
3
Bug in rt() ? (PR#9422)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
<<insert bug report here>>
Reproduced on Debian and Windows ...
On 2.4.x if you execute
set.seed(12345)
t.1 <- rt(n = 1000, df = 20)
set.seed(12345)
t.2 <- rt(n = 1000, df = 20, ncp = 0)
all.equal(t.1, t.2) ## Not close to true
This appears to be due to the fact that in 2.4.x rt is now
rt
function (n, df, ncp = 0)
{
if
2007 Mar 26
1
Problem in loading all packages all at once
Hi All
Please see the Rprofile file which i have modified as follows and after
that when I start R then I see that R says to me "TRUE" for all the
packages implying that all loaded at once.
But when i try to use commands as simple as help("lm"), it doesnt work nor
any of the menu "Packages" is not working.
Although the regression using lm ( Y ~ X ) is working
2002 Nov 18
0
SUMMARY: Samba "unable to validate password" error
To sunmanagers and samba@lists readers:
Thank you all so much for your help with the samba issue. Although the
problem was not solved, your suggestions made it possible for us to
narrow down the problem. We believe the problem are two office PCs
that were recently configured with some new test software. All other
PCs and user accounts work fine. I do need to upgrade samba to a
newer version
2000 Feb 17
2
Installation of rpm file on Suse Linux 6.2 (PR#449)
Full_Name: Luzi P. Schucan
Version: R-base-0.90.1-2.i386.rpm
OS: Linux
Submission from: (NULL) (141.84.136.129)
I just wanted to install the rpm package with rpm --v -i [file], and here is the
log:
(I DID run it as root!!)
(the important thing is in the end: there must be a bug in the post install
script.
The problem is, that it does install all the files, but it doesn't correctly
hang
the
2002 Jul 11
1
dyn.load tcl/tk (PR#1774)
<<insert bug report here>>
------------------------------------------------------
Error:
R : Copyright 2002, The R Development Core Team
Version 1.5.1 (2002-06-17)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type `license()' or `licence()' for distribution details.
R is a collaborative project with