Displaying 20 results from an estimated 1000 matches similar to: "Make sign test show test statistics"
2007 Nov 15
3
Ancova doesn't return test statistics
Dear all,
I'm quite sure that this is a stupid question, but I'll ask anyway.
I want to perform an ANCOVA with two continuous factors and three
categorical factors.
Plant population growth rate (GR) = dependent variable
Seed reduction due to herbivory (SR) = continuous explanatory variable
Herbivore species (HS, 2 levels) = categorical explanatory variable
Population (Pop, 24 levels) =
2009 Feb 05
1
Incorrect p value for binom.test?
I believe the binom.test procedure is producing one tailed p values
rather than the two tailed value implied by the alternative hypothesis
language. A textbook and SAS both show 2*9.94e-07 = 1.988e-06 as the
two tailed value. As does the R summation syntax from R below. It
looks to me like the alternative hypothesis language should be revised
to something like " ... greater than or equal
2010 Jul 29
2
Multiple binomial tests on a large table
I need to run binomial tests (binom.test) on a large set of data, stored
in a table - 600 tests in total.
The values of x are stored in a column, as are the values of n. The
data for each test are on a separate row.
For example:
X N
11 19
9 26
13 21
13 27
18 30
It is a two-tailed test, and P in all cases is 0.5.
My question is: Is there a quicker way of running these tests without
having to
2010 Sep 01
2
general question on binomial test / sign test
hello,
i did several binomial tests and noticed for one sparse dataset that
binom.test(1,1,0.5) gives a p-value of 1 for the null, what i can't quite
grasp. that would say that the a prob of 1/2 has p-value of 0 ?? - i must be
wrong but can't figure out the right interpretation..
best,
kay
-----
------------------------
Kay Cichini
Postgraduate student
Institute of Botany
Univ. of
2020 Sep 01
2
[RFC] [DebugInfo] Using DW_OP_entry_value within LLVM IR
Hi David,
Thanks for your comments!
I just want to add that I think it would neat if the entry values could map into
multi-location dbg.values and DBG_VALUEs that are being proposed on this list.
For example, if we have:
int local = param1 + param2 + 123;
I think it would be good if we would be able to to represent the four different
permutations of the values of the parameters being
2002 Sep 22
3
binom.test()
Hello everybody.
Does anyone else find the last test in the following sequence odd?
Can anyone else reproduce it or is it just me?
> binom.test(100,200,0.13)$p.value
[1] 2.357325e-36
> binom.test(100,200,0.013)$p.value
[1] 6.146546e-131
> binom.test(100,200,0.0013)$p.value
[1] 1.973702e-230
> binom.test(100,200,0.00013)$p.value
[1] 0.9743334
(R 1.5.1, Linux RedHat 7.1)
--
2003 Apr 18
2
prop.test confidence intervals (PR#2794)
Full_Name: Robert W. Baer, Ph.D.
Version: 1.6.2
OS: Windows 2000
Submission from: (NULL) (198.209.172.106)
Problem: prop.test() does not seem to produce appropriate confidence intervals
for the case where the vector length of x and n is one. (I am not certain about
higher vector lengths.)
As an example, I include x=6 and n=42 which has a mean proportion of 0.115.
When I calculate the 95% CI
2006 Jul 30
1
Power of a single sample binomial test
The only references to this I can find searching the archives are to a
student who asked in relation to his course work on a stats course.
Promise I'm not doing that!
I have a situation in which we want to test proportions against an
expected proportion, binom.test() is great. I'd like to do some post
hoc power tests (the x and n were beyond our control in the survey as
all we could set
2006 Nov 16
1
curl-7.16.0 breaks compilation of vorbis-tools-1.1.1
Hello,
curl-7.16.0 breaks compilation of vorbis-tools-1.1.1 - please
see http://curl.haxx.se/mail/archive-2006-11/0046.html for details.
According to Daniel Stenberg, CURLOPT_MUTE is deprecated.
Could you please update vorbis-tools code so it won't use
deprecated features of 'curl' ?
Should I file a bug report regarding this issue ?
Thanks,
Sergei.
Applications From Scratch:
2023 Feb 22
1
[PATCH nbdkit] curl: Try to share as much as possible between handles in the pool
On Wed, Feb 22, 2023 at 04:52:35PM +0100, Laszlo Ersek wrote:
...
> Seems sane to me in general, except for the fact that the documentation
> at <https://curl.se/libcurl/c/CURLSHOPT_SHARE.html> writes:
>
> """
> CURL_LOCK_DATA_CONNECT
>
> Put the connection cache in the share object and make all easy handles
> using this share object share the
2005 Aug 27
2
two-tailed exact binomail test
I am trying to find a definition for the two-tailed exact binomial test but have been unsuccessful. Can you help?
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2012 May 20
1
question about sign test
Hi,
I want to compute p value of sign test for sample size=15 from normal
distr., sd=0.5, mean=1, alternative should be two sided.
Is this code correct in this situation?
binom.test(sum(rnorm(15,1,0.5)>0),15,p=0.5,alternative="two")$p.value
Or should I use another code (function) e.g. rbinom?
Thank you very much.
kind regards,
T. Bal
[[alternative HTML version deleted]]
2003 Jan 22
2
small bug in binom.test?
Hi all,
I am wondering whether there is a small bug in the binom.test function of
the ctest library (I'm using R 1.6.0 on windows 2000, but Splus 2000 seems
to have the same behaviour). Or perhaps I've misunderstood something.
the command binom.test(11,100,p=0.1) and binom.test(9,100,p=0.1) give
different p-values (see below). As 9 and 11 are equidistant from 10, the
mean of the
2006 Oct 11
2
expression as a parameter of binom.test (PR#9288)
Full_Name: Petr Savicky
Version: 2.4.0
OS: Fedora Core release 2
Submission from: (NULL) (62.24.91.47)
the error is
> binom.test(0.56*10000,10000)
Error in binom.test(0.56 * 10000, 10000) :
'x' must be nonnegative and integer
while
> binom.test(5600,10000)
yields correct result.
The same error occurrs for
> binom.test(0.57*10000,10000)
2004 Apr 30
1
Exact Binomial test feature or bug?
Dear R Users,
Is the p-value reported in a two-tailed binomial exact
test in error or is it a feature?
If it is a feature, could someone provide a reference
for its two-tailed p-value computations?
Using Blaker's (2000 - Canad. J. Statist 28: 783-798)
approach,the p-value is the minimum of the two-tailed
probabilities $P \left(Y\geq y_{obs}\right)$ and
$P\left(Y\leq y_{obs}\right)$
2012 Aug 20
1
The difference between chisq.test binom.test and pbinom
Hello all,
I am trying to understand the different results I am getting from the
following 3 commands:
chisq.test(c(62,50), p = c(0.512,1-0.512), correct = F) # p-value = 0.3788
binom.test(x=62,n=112, p= 0.512) # p-value = 0.3961
2*(1-pbinom(62,112, .512)) # p-value = 0.329
Well, the binom.test was supposed to be "exact" and give the same results
as the pbinom, while the chisq.test
2006 Oct 19
5
binom.test
R-experts:
A quick question, please.
>From a lab exp, I got 12 positives out of 50.
To get 90% CI for this , I think binom.test might be the one to be used.
Is there a better way or function to calculate this?
> binom.test(x=12, n=50, p=12/50, conf.level = 0.90)
Exact binomial test
data: 12 and 50
number of successes = 12, number of trials = 50, p-value = 1
alternative
2006 Jul 04
1
problem getting R 2.3.1 svn r38481 to pass make check-all
Hi,
I noticed this problem on my home desktop running FC4 and again on my
laptop running FC5. Both have previously compiled and passed make
check-all on 2.3.1 svn revisions from 10 days ago or so. On both these
machines, make check-all is consistently failing (4 out of 4 attempts on
the FC 4 desktop and 3 out of 3 on the FC 5 laptop) in the
p-r-random-tests tests. This is with both default
2000 Oct 02
2
binom.test bug?
R. 1.1.0
The example below is self explanatory.
## 1 ## # works fine
> binom.test((50*.64),50,.5,alt='g')
... Exact binomial test ...
## 2 ## # WHAT ! ?
> binom.test((50*.65),50,.5,alt='g')
Error in binom.test((50 * 0.65), 50, 0.5, alt = "g") :
x must be an
2007 Apr 05
1
binom.test() query
Hi Folks,
The recent correspondence about "strange fisher.test result",
and especially Peter Dalgaard's reply on Tue 03 April 2007
(which I want to investigate further) led me to take a close
look at the code for binom.test().
I now have a query!
The code for the two-sided case computes the p-value as follows:
if (p == 0) (x == 0)
else
if (p == 1) (x == n)