Displaying 20 results from an estimated 100 matches similar to: "lmer family=binomal p-values"
2009 Apr 28
1
Random Sample with Unique function
Dear R-users
I have a dataset of 243 lines with replicate information for 20 different individuals (ID).
I would like to randomly sample this dataset 100 times with a selection of unique IDs in each sample.
First to create a random sample I have;
cc<-read.table(blah.blah.blah)
names(cc)
[1] "CALL" "CONTEXT" "ORDER" "ID"
2009 Oct 06
2
Viewing specific data from a dataframe
Dear R users,
Simple question. Can anyone help with the code that would allow me to view only the variables who's correlation output is >0.8?
This is the code I'm using to date
>cor(data, method="spearman")
Kind regards
Krys
--------------------------------------------
_________________________________________________________________
Save time by
2004 Apr 19
0
One inflated Poisson or Negative Binomal regression
Dr. Flom,
I was searching the web for any examples of one-inflated negative binomial regression, and ran across your post. Fittingly, I am working on the analysis of data from the NIDA Cooperative Agreement where I had the pleasure of working with Sherry Deren and other folks at NDRI. NBR does a poor job of modeling number of sex partners. (I am using Stata.) Did you have any luck modeling a
2003 Oct 29
1
One inflated Poisson or Negative Binomal regression
Hello
I am interested in Poisson or (ideally) Negative Binomial regression
with an inflated number of 1 responses
I have seen JK Lindsey's fmr function in the gnlm library, which fits
zero inflated Poisson (ZIP) or zero inflated negative binomial
regression, but the help file states that for ' Poisson or related
distributions the mixture involves the zero category'.
I had thought
2018 May 11
3
Moving roaming profiles between domains, risky?
OK, now i've to start to move the big part of my users from my old
NT-like domains to my new AD domain.
I've setup roaming profile in the new domain following the wiki
(https://wiki.samba.org/index.php/Roaming_Windows_User_Profiles, 'using
windows ACL') and for new profiles works like a charm.
But i've tried to move/copy old profile to the new domain, and seems
work, with
1999 Jan 28
1
bug in the ctest package: binom.test
R 0630 for windows
> library(ctest)
> binom.test(7,10,p=0.3, alternative="two.sided")
returns a p-value of =< 2.2e-016 and a warning
In Splus 3.4
> binom.test(7,10,p=0.3, alternative="two.sided")
returns a p-value of 0.0106
I think it is the
max(v[v<=(1+eps)*PVAL]) causing the problem...
max() of an empty vector.......
Mai Z
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
2002 Mar 22
1
binom.test and small N
running R 1.4.1 on MAC and 1.2.2 on Linux
When I use run binom.test with small N the results are a little
perplexing to me
>binom.test(9,20,p=0.5)
gives the below plus other stuff
95 percent confidence interval:
0.2305779 0.6847219
Now:
>pbiom(9,20,0.6847219)
[1] 0.02499998 # i.e., lower 2.5% of distribution
>pbinom(9,20,0.2305779)
[1] 0.9923132
>pbinom(8,20,0.2305779)
2008 May 29
1
Accessing Value of binom.test
With this line:
> binom.test(x=12, n=50, p=12/50, conf.level = 0.90)
I get this output:
> Exact binomial test
>
> data: 12 and 50
> number of successes = 12, number of trials = 50, p-value = 1
> alternative hypothesis: true probability of success is not equal to 0.24
> 90 percent confidence interval:
> 0.1447182 0.3596557
> sample estimates:
> probability
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
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)
2001 Jun 08
1
binom.test appropriate?
Hi there,
as part of a 2 x 2 contingency table analysis I would like to estimate
conditional probabilities (success rates) in a Bernoulli
experiment. In particular I want to test a null hypothesis p <= p0
versus the alternative hypothesis p > p0.
As far as I understand the subject, there are UMPU tests for these
types of hypotheses.
Now I know about R's "binom.test" but the
2001 Jun 09
1
AW: binom.test appropriate?
No,
since I'd like to test
null: p <= p0
alternative: p > p0.
and my understanding is that binom.test tests
null: p = p0 (can only be a "simple" null hypothesis
according to help(binom.test))
alternative: p > p0 (or p < p0 or p != p0).
Thanks, Mirko.
> -----Urspr?ngliche Nachricht-----
> Von: Douglas Bates [mailto:bates at stat.wisc.edu]
>
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
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)
--
2010 May 11
1
how to extract the variables used in decision tree
HI, Dear R community,
How to extract the variables actually used in tree construction? I want to
extract these variables and combine other variable as my features in next
step model building.
> printcp(fit.dimer)
Classification tree:
rpart(formula = outcome ~ ., data = p_df, method = "class")
Variables actually used in tree construction:
[1] CT DP DY FC NE NW QT SK TA WC WD WG WW
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
2010 Feb 11
1
Zero-inflated Negat. Binom. model
Dear R crew:
I am sorry this question has been posted before, but I can't seem to solve
this problem yet.
I have a simple dataset consisting of two variables: cestode intensity and
chick size (defined as CAPI).
Intensity is a count and clearly overdispersed, with way too many zeroes.
I'm interested in looking at the association between these two variables,
i.e. how well does chick
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
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)