Displaying 20 results from an estimated 800 matches similar to: "R-beta: Re: [S] pbinom"
2002 May 17
0
pbinom gotcha (PR#1569)
This came up due to a question from Anders Hald:
Bernoulli calculated an approximation to the smallest n so that
P(0.58 <= x/n <= 0.62) >= 1000/1001
What is the exact value?
Now try
n <- 6350:6500
Pr <- function(n)pbinom(0.62*n,n,0.6) -
pbinom(0.58*n,n,0.6) + dbinom(0.58*n,n,0.6)
plot(n,Pr(n),type="b")
abline(h=1000/1001)
min(n[Pr(n)>1000/1001])
Next, try
Pr
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 Mar 22
4
pbinom( ) function (PR#8700)
Full_Name: Chanseok Park
Version: R 2.2.1
OS: RedHat EL4
Submission from: (NULL) (130.127.112.89)
pbinom(any negative value, size, prob) should be zero.
But I got the following results.
I mean, if a negative value is close to zero, then pbinom() calculate
pbinom(0, size, prob). dbinom() also behaves similarly.
> pbinom( -2.220446e-22, 3,.1)
[1] 0.729
> pbinom( -2.220446e-8, 3,.1)
2005 Feb 11
1
Re: [R-SIG-Mac] Bug running pbinom() in R-GUI?
On Feb 10, 2005, at 7:38 PM, George W. Gilchrist wrote:
> Today I was running a graduate level stats lab using R and we
> encountered a
> major problem while using the current build of the Cocoa GUI:
>
>> From the GUI:
>> system.time(pbinom(80, 1e5, 806/1e6))
> [1] 14.37 4.94 30.29 0.00 0.00
>>
>
>> From the command line on the same machine:
>>
2006 Feb 03
5
pbinom with size argument 0 (PR#8560)
Full_Name: Uffe H?gsbro Thygesen
Version: 2.2.0
OS: linux
Submission from: (NULL) (130.226.135.250)
Hello all.
pbinom(q=0,size=0,prob=0.5)
returns the value NaN. I had expected the result 1. In fact any value for q
seems to give an NaN. Note that
dbinom(x=0,size=0,prob=0.5)
returns the value 1.
Cheers,
Uffe
2006 Oct 30
0
File Store permissions
I am using Ferret for a Rails app in which Rails runs as one user but I have
other processes that run as a different user that modify the ferret index.
This is done in large part to mitigate the damage if a major exploit is found
in Rails again.
The problem is Ferret creates all its index files with rw for the user only.
I have included a small patch that changes Ferret to create these
2003 Nov 22
3
1.8.1 behavior change?
In <R 1.8.1 the following fragment worked properly, now (1.8.1)
it creates the following warning/error:
Any advice appreciated.
stt <- data.frame()
# load all datasets into a dataframe
for (ds in 1:n) {
stt[ds] <- as.matrix(read.table(fileList[ds]))
}
--
> stt <- data.frame()
> # load all datasets into a dataframe
> for (ds in 1:n) {
+ stt[ds] <-
2005 Feb 23
1
Re: [R-SIG-Mac] Bug running pbinom() in R-GUI?
The real problem is that pbeta can take forever. That's bug #7153 and a fix is
within reach.
Morten
2006 Jun 26
0
[klibc 21/43] alpha support for klibc
The parts of klibc specific to the alpha architecture.
Signed-off-by: H. Peter Anvin <hpa at zytor.com>
---
commit 5e5ce29210ac33a0b3704eb9ab5e5d5b55375575
tree 2ec24df596e13c21b68da4d905f546770d36fdad
parent 8529b52550ba78984998d3a9cc9deb467217fa3e
author H. Peter Anvin <hpa at zytor.com> Sun, 25 Jun 2006 16:58:14 -0700
committer H. Peter Anvin <hpa at zytor.com> Sun, 25 Jun
2010 Feb 06
2
R-Help
Hi - I am not familiar with R. Could I ask you a quick question?
When I read a file like this, I get an error. Not sure what I am doing
wrong. I use a MAC. How do I specify a full path name for a file in R? Or
do files have to reside locally?
> KoreaAuto <- read.table(""/Users/
raviramaswamy/Documents/Rutgers/STT 586/HW1 Data.txt"")
Error: unexpected numeric
2003 Feb 14
0
FW: [Fwd: Re: [S] Exact p-values]
Dear Spencer
Thank you for this extensive explanation of the problem.
I was just curious.
Best regards
Christian
==============================================
Christian Stratowa, PhD
Boehringer Ingelheim Austria
Dept NCE Lead Discovery - Bioinformatics
Dr. Boehringergasse 5-11
A-1121 Vienna, Austria
Tel.: ++43-1-80105-2470
Fax: ++43-1-80105-2683
email: christian.stratowa at
2008 Aug 05
1
optimize simultaneously two binomials inequalities using nlm( ) or optim( )
Dear R users,
I?m trying to optimize simultaneously two binomials inequalities (used in
acceptance sampling) which are nonlinear solution, so there is no simple
direct solution. Please, let me explain shortly the the problem and the
question as following.
The objective is to obtain the smallest value of 'n' (sample size)
satisfying both inequalities:
(1-alpha) <= pbinom(c, n, p1)
2001 Jul 01
0
ks.test doesn't compute correct empirical distribution if there are ties in the data (PR#1007)
Full_Name: Andrew Grant McDowell
Version: R 1.1.1 (but source in 1.3.0 looks fishy as well)
OS: Windows 2K Professional (Consumer)
Submission from: (NULL) (194.222.243.209)
In article <xeQ_6.1949$xd.353840@typhoon.snet.net>,
johnt@tman.dnsalias.com writes
>Can someone help? In R, I am generating a vector of 1000 samples from
>Bin (1000, 0.25). I then do a Kolmogorov Smirnov test
2014 Aug 11
1
Cyberpower Value1200E might not need 0.667 battery scaling
Attached is the first 32 seconds of the driver output after applying the
patch which fixes the battery scaling problem for this UPS.
Matthew Stapleton
Email: matthew4196 at gmail.com
On 10/08/14 01:27, Charles Lepple wrote:
> On Aug 8, 2014, at 9:15 AM, Charles Lepple <clepple at gmail.com> wrote:
>
>> On Aug 7, 2014, at 10:52 PM, Charles Lepple <clepple at gmail.com>
2000 Nov 21
2
large object disorientation
This is an inquiry for all those who have been working on external
data base applications. I sent an inquiry (below) to snews about
this sort of thing a couple of years ago and eventually decided that
I would wait to see what external database developments occurred and
then revisit the problem. I hope that foundations are now better.
Suppose for the sake of concreteness you have a large
2010 Mar 13
1
What can I use instead of ks.test for the binomial distribution ?
Hello all,
A friend just showed me how ks.test fails to work with pbinom for small
"size".
Example:
x<-rbinom(10000,10,0.5)
x2<-rbinom(10000,10,0.5)
ks.test(x,pbinom,10,0.5)
ks.test(x,pbinom,size = 10, prob= 0.5)
ks.test(x,x2)
The tests gives significant p values, while the x did come from
binom with size = 10 prob = 0.5.
What test should I use instead ?
Thanks,
Tal
2001 Jul 01
1
(PR#1007) ks.test doesn't compute correct empirical
On Sun, 1 Jul 2001 mcdowella@mcdowella.demon.co.uk wrote:
> Full_Name: Andrew Grant McDowell
> Version: R 1.1.1 (but source in 1.3.0 looks fishy as well)
> OS: Windows 2K Professional (Consumer)
> Submission from: (NULL) (194.222.243.209)
Please upgrade: we've found a number of Win2k bugs and worked around them
since then, let alone teh bug fixes and improvements in R ....
>
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
$P\left(Y\leq y_{obs}\right)$
2007 Mar 15
1
must-install programs/applications/dlls?
I'm trying to get some applications working on my Wine install, some
applications just work without trouble (and even work better than on
windows! A good example of this is Master of Orion III), however other
applications don't work at all, and are supposed to be quite simple to
get working (WoW, IE using any of three or four techniques I found
online, etc).
Are there anyapplications or
2008 Jul 21
0
optimize function help!!
Dear R users,
I?m trying to optimize simultaneously two binomials inequalities used to
acceptance sampling, which are nonlinear solution, so there is no simple
direct solution.
The 'n' represents the sample size and the 'c' an acceptance number or
maximum number of defects (nonconforming) in sample size.
The objective is to obtain the smallest value of 'n' (sample size)