Displaying 20 results from an estimated 3000 matches similar to: "calculation of the p value in ks.test()"
2003 Sep 15
1
question regarding ks.test()
Hi,
I'm using the ks.test() on two vectors. I looked up the reference and
also coded up a version of the two sample Smirnov test. My question is
that how can I decide from the output of R that the two vectors x & y
come from the same distribution?
Am I correct in assuming that smaller D values indicate that they come
from the same distribution? In addition how can I use the p value that
2003 Sep 03
3
plotting a distribution curves
Hi,
is there a way to plot distribution curves (say normal or chi sq etc)
from within R?
For example I looked up the *chisq family of functions but I'm not sure
as to how I would use them to generate a plot of the chi sq distribution
(for arbitrary d.o.f).
Thanks,
-------------------------------------------------------------------
Rajarshi Guha <rajarshi at presidency.com>
2003 Mar 03
2
saving a plot to a file
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Hi,
I'm a new user of R and have managed to make a plot of a histogram. Is there
any way I set the title and axes labels and then save the plot as an image
(png/gif)?
Thanks
- --
- -------------------------------------------------------------------
Rajarshi Guha <rajarshi at presidency.com> <http://jijo.cjb.net>
GPG
2003 Sep 14
1
title for plot contain 4 subplots
Hi,
I'm plotting 4 graphs on one page (2x2 matrix) but I cant seem to get
the title for the whole page right.
I'm doing:
op <- par(mfrow = c(2,2), pty="s")
hist(var$V2, breaks="FD",main="Euclidean Metric", xlab="Sum of 3NN ...
hist(var$V2, breaks="FD",main="Manhattan Metric", xlab="Sum of 3NN ...
hist(var$V2,
2015 Jun 29
5
resolve errors with Samba 4 dns
I'm running Debian/Jessie on a server which is used as an AD DC. I'm
getting errors like this:
Hit http://ftp.ca.debian.org jessie InRelease
Hit http://ftp.ca.debian.org jessie/main Sources
Hit http://ftp.ca.debian.org jessie/main amd64 Packages
Hit http://ftp.ca.debian.org jessie/main Translation-en
Err http://ftp3.nrc.ca jessie InRelease
Err http://ftp3.nrc.ca jessie-updates InRelease
2010 Apr 14
2
Gaussian Quadrature Numerical Integration In R
Hi All,
I am trying to use A Gaussian quadrature over the interval (-infty,infty) with weighting function W(x)=exp(-(x-mu)^2/sigma) to estimate an integral.
Is there a way to do it in R? Is there a function already implemented which uses such weighting function.
I have been searching in the statmode package and I found the function "gauss.quad(100, kind="hermite")" which uses
2015 Jun 29
3
resolve errors with Samba 4 dns [RESOLVED]
and 'host google.com 8.8.8.8' also gives the expected output?
Like this:
> root at pf:~# host google.com 8.8.8.8
> Using domain server:
> Name: 8.8.8.8
> Address: 8.8.8.8#53
> Aliases:
>
> google.com has address 74.125.136.100
> google.com has address 74.125.136.113
> google.com has address 74.125.136.101
> google.com has address 74.125.136.138
>
2011 Nov 06
2
how to use quadrature to integrate some complicated functions
Hello to all,
I am having trouble with intregrating a complicated uni-dimensional function
of the following form
Phi(x-a_1)*Phi(x-a_2)*...*Phi(x-a_{n-1})*phi(x-a_n).
Here n is about 5000, Phi is the cumulative distribution function of
standard normal,
phi is the density function of standard normal, and x ranges over
(-infty,infty).
My idea is to to use quadrature to handle this integral. But
2012 Feb 29
2
Converting a function from Splus to R
I have a function written for Splus, when I run it in R I obtain get an error
because the function has the elements "0.d0" and "2.d0". How can I change it
to run in R?
The function can be found in page 230 from
http://www.stat.wisc.edu/~mchung/teaching/stat471/stat_computing.pdf
Function is as follows:
gauher <- function(n) {# Gauss-Hermite: returns x,w so that
2006 Oct 02
1
Trig.Rd typo (PR#9269)
Full_Name: Robin Hankin
Version: 2.4.0 RC
OS: MacOSX 10.4.7
Submission from: (NULL) (139.166.242.29)
The first cut line described in Trig.Rd for asin() is incorrect in the ascii
version of the manpage.
The Rd file reads:
For \code{asin()} and \code{acos()}, there are two cuts, both along
the real axis: \eqn{\left(-\infty, -1\right]}{\(-Inf, 1\]} and
Note the inconsistency between the
2004 May 07
1
RPC net start
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Hi,
First, as far as I can tell, this topic hasn't been mentioned in the mailing
lists in awhile (atleast not as far as google can tell).
Is there any client/program that can send "net start" requests to windows
boxes.
The ability to start a program as a service on a windows box remotely would
obviously be very handy.
I am aware of
2017 May 16
1
rsync -aAXv to a FAT formatted directory?
Does rsync -aAXv /dir1 /dir2, where dir2 is a mounted FAT formatted SD
card, and then:
rsync -aAXv /dir2 /dir1, to restore the files in dir1 from the FAT
formatted SD card, restore the ACL and owner/permissions of the files
and directories in dir1?
Thanks,
John
--
John Conover, conover at rahul.net, http://www.johncon.com/
2012 May 23
1
numerical integration
Greetings,
Sorry, the last message was sent by mistake! Here it is again:
I encounter a strange problem computing some numerical integrals on [0,oo).
Define
$$
M_j(x)=exp(-jax)
$$
where $a=0.08$. We want to compute the $L^2([0,\infty))$-inner products
$$
A_{ij}:=(M_i,M_j)=\int_0^\infty M_i(x)M_j(x)dx
$$
Analytically we have
$$
A_{ij}=1/(a(i+j)).
$$
In the code below we compute the matrix
2012 May 02
3
strange differences in vector operation versus manual calculation
Hi, I'm running a calculation in two ways. The first way is to employ
vectors and evaluate a function in one go. The second way is to break
down the function into pieces and combine the pieces to the final
answer.
Algebraically, they should give me the same result. But the final
vector differs significantly. I must be missing something very
obvious, but I just cannot see it
xx <-
2006 Nov 18
1
Questions regarding "integrate" function
Hi there. Thanks for your time in advance.
I am using R 2.2.0 and OS: Windows XP.
My final goal is to calculate 1/2*integral of
(f1(x)^1/2-f2(x)^(1/2))^2dx (Latex codes:
$\frac{1}{2}\int^{{\infty}}_{\infty}
(\sqrt{f_1(x)}-\sqrt{f_2(x)})^2dx $.) where f1(x) and f2(x) are two
marginal densities.
My problem:
I have the following R codes using "adapt" package. Although "adapt"
2017 Jan 30
3
Samba-4.3 AD-DC Win7pro clients not time syncing
We have a Samba-4.3 AD-DC hosted on a FreeBSD-10.3 system. We have
just discovered that for some reason our domain workstations are not
synchronising their time with the AD-DC. We have not altered the
default GPO nor have we created a special GPO to handle time services.
I have been working on several of the domain clients and I cannot seem
to get them to source from the Samba server. I have
2010 Sep 21
3
bivariate vector numerical integration with infinite range
Dear list,
I'm seeking some advice regarding a particular numerical integration I
wish to perform.
The integrand f takes two real arguments x and y and returns a vector
of constant length N. The range of integration is [0, infty) for x and
[a,b] (finite) for y. Since the integrand has values in R^N I did not
find a built-in function to perform numerical quadrature, so I wrote
my own after
2004 Oct 15
0
SJava 0.65 and R 2.0.0 (slightly long)
Hi,
I had some Java code that worked with SJava 0.65 under R 1.8.*. I'm
trying to get it to work with R 2.0.0. My JVM is Sun 1.5.0 (running on
Fedora Core 2)
I downloaded and installed SJava 0.65 in my personal directory using
R CMD INSTALL SJava-0.65.tar.gz -l ~/src/Rlibrary
and before starting R I sourced RJava.bsh. However after loading the
SJava library if do javaConfig() I get
2009 Jun 23
2
an idiom to handle i'th element of a set of lists simultaneously
Hi, I have 3 lists, x, y, z and I'd like to perform a calculation over all
the lists simultaneously. If it were a single list I could use lapply, but
for more than one list I'm using a for loop. Is there an idiom that would
let me use something like lapply, but the function specified to lappy would
have access to an element from each list? (In Python, I would have used for
a,b,c in
2017 Oct 09
1
Using response variable in interaction as explanatory variable in glm crashes R
>>>>> Jan van der Laan <rhelp at eoos.dds.nl>
>>>>> on Fri, 6 Oct 2017 12:13:39 +0200 writes:
> It is actually model.matrix that crashes, not glm. Same
> crash occurs with e.g. lm.
> model.matrix(dob_mon ~ dob_day*dob_mon, data = tab)
> also crashes R.
Yes, segmentation fault.
It only happens when these are *logical*