Displaying 20 results from an estimated 400 matches similar to: "Brown-Forsythe Test"
2010 Aug 30
2
Brown-Forsythe test of equality of MEANS
Dear friends,
two years ago (as I found on the web) Paul sent the following message but I was not able to find if he got an answer. Today I have the same question and it would be great if I could find out that this test has been implemented (somehow) in R. Please do not confuse it with the Brown-Forsythe test of equality of variances. Thank you:
I've been searching around for a function for
2004 Jun 21
2
Welch-JM-Test or Brown-Forsythe-Test in R?
Does oneway.test do what you want?
Hope this helps,
Matt Wiener
-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Sven Hartenstein
Sent: Monday, June 21, 2004 3:23 PM
To: r-help at stat.math.ethz.ch
Subject: [R] Welch-JM-Test or Brown-Forsythe-Test in R?
Hi,
I want to test mean differences of > 2 groups with
2008 Apr 16
1
Brown-Forsythe F* Statistic
I've been searching around for a function for computing the
Brown-Forsythe F* statistic which is a substitute for the normal ANOVA
F statistic for when there are unequal variances, and when there is
evidence of non-normality. A couple of other people have asked this
question, the responses I found have been:
?oneway.test
However, that function appears to use the Welch W statistic which,
2012 Oct 12
1
RTAQ - convert function: warning causes incorrect loading of data
Hello,
I am closely following the RTAQ documentation in order to load my dataset
into R, however I get this warning when running the convert function in the
following way:
convert(from="2010-11-01", to="2010-11-01",datasource=datasource,
datadestination=datadestination,trades=T,quotes=T,ticker="BAC",dir=T,
extention="csv", header=T,
2010 Jul 22
1
Heterogeneous variance in two-way mixed ANOVA
I have heterogeneous variance in a two-way mixed effects ANOVA, with more than 2 groups in each factor. Is there something like oneway.test or a Brown-Forsythe test that will let me test for differences in means?
Thanks!
-Keith
2009 Apr 30
3
tool for packet detection
Hi
I have small query, all our server are centos based 5 and 5.2 . We are
looking ofr a tool to that measure packet loss. we have servers in two IDC's
bothin the US and we are trying to download a 2gb file from the internet.
Some server are able to download the file at a higher b/w rate in one IDC
...while servers at he the other IDC download the same file at a lowe b/w
rate . Is ther any
2006 May 31
1
Nesting in Cox proportional hazards survivorship analysis
Hello,
My advisor and I have been working on some survivorship analyses in R and we are
hoping to get some feedback on a particular issue involving nesting.
We are interested in patterns of food discovery by ant species. Our observations consist of time to discovery by an ant for three different food types, each of two different sizes. These data were collected at 6 plots located in each of
2019 Feb 28
2
Pigeonhome Sieve: check existence of a folder?
Dear All,
Thanks ofr the great job so far.
I have crawled the doc & web, and did not find oh to check for the
presence of a folder ina? a mailbox?
I know about "fileinto :create" of course, but the purpose is slightly
different: I want to automate the move into a folder based on some rules
but *only if* an associated folder is present (which name is based on
the rule),
2010 Oct 06
1
CALLERPRES() with Queue
Good afternoon list,
I'm having a problem using the function CALLERPRES() when connection to a
Queue().
When I call an extension, before the Dial (), I select the function
CALLERPRES () as "unavailable" to link the extension comes as anonymous. But
if I call a queue before the Queue (), I select the function CALLERPRES() as
"unavailable", but the identification appears
2007 Apr 16
0
[LLVMdev] "Name that compiler"
[Apologies in advance for the train of thought prose, but it is
brainstorming after all…]
I'm going to focus on self-descriptive names rather than literary or
fantasy references…
Advanced Compiler Kit, affectionately known as “ACK!”? It has an ill-
deserved nod to NeXT, even. (Completely the wrong language, after all.)
Core Compiler? Heh, I don't think that'd get past certain
2003 Nov 17
1
Voip providers U.S (eastern) ??
Hello, can anyone out there recommend any voip companies in the US that can
provide D.I.D lines that ring in to you SIP/IAX connection? I am aware
of getting a T1 hooked up with D.I.D lines and a bank ofr lets say 20
numbers.. But is there any way around this
using mostly VOIP ??
Thanks...
2004 Dec 19
1
Homogeneity of variance tests between more than 2 samples (long)
Dear all
a couple of months ago i've found threads regard test that verify AnOVa
assumption on homogeneity of variances. Prof. Ripley advice LDA / QDA
procedures, many books (and many proprietary programs) advice Hartley's F_max,
Cochran's minimum/maximum variance ratio (only balanced experiments), K^2
Bartlett's test, Levene's test.
Morton B. Brown and Alan B. Forsythe in a
2016 Feb 29
4
problema al importar una BD que esta en formato de SPSS
Estimados, tengo que hacer un calculo muy simple, pero con una BD mas o
menos grande (250mil filas x 500 columnas) ... esta BD esta en formato
de SPSS y la importo asi:
library(foreign)
bdr <- read.spss("CASEN_2013_MN_B_Principal.sav",
use.value.labels=FALSE, to.data.frame=TRUE)
luego, quiero transformar el DF en un data.tale pues el calculo requiere
obtener promedios de
2007 Mar 06
0
virus encontrado em mensagem enviada "Re: Valeu!!"
Atencao: openssh-unix-dev at mindrot.org
Um virus foi encontrado numa mensagem de Email que acabou de
ser enviada por voce.
Este scanner de Email a interceptou e impediu a mensagem de chegar
no seu destino.
O virus foi reportado como sendo:
Worm.Somefool.AR
Por favor atualize seu antivirus ou contate o seu suporte tecnico
o mais rapido possivel pois voce tem um virus no seu computador.
2004 Apr 23
0
Virus encontrado em mensagem enviada "Re: Administration"
Atencao: samba@samba.org.
Um Virus foi encontrado numa mensagem de Email que acabou de
ser enviada por voce.
Este scanner de Email a interceptou e impediu a mensagem de chegar
no seu destino.
O Virus foi reportado como sendo:
the W32/Netsky.p@MM virus !!!
Por favor atualize seu antivirus ou contate o seu suporte tecnico
o mais rapido possivel pois voce tem um virus no seu computador.
2019 Feb 28
0
Pigeonhome Sieve: check existence of a folder?
What about extension "mailbox"?
https://wiki.dovecot.org/Pigeonhole/Sieve
https://tools.ietf.org/html/rfc5490#section-3
A simple example (not tested, but should work):
note:?
+ I use '/' instead of '.' as hierarchical separator
+ stop; stops the whole script, but you could use elsif instead.
require ["fileinto", "mailbox"];
if header :contains
2004 Sep 10
0
nice idea
some times ago i was playing with coding, shannon theoremes and other stuff, i
have tried without success to compress audio wave, and i have notice that
simply oversampling audio material enacnhe a lot compression ratio
i only take awav file, oversampled it by 20 tiimes and then compressi it
using pkzip or rar.
i don0't remember if i also do a CONSTANT PREDICTION,
iony know that pkzip
2004 Aug 06
0
directory_touch_xa knocks me down
I'm using icecast 1.3.10 and ices 0.1.0. I'm streaming through
adsl which seems to do about 350Kb up. Everything is fine and
stable for up to the 2 simultaneous subscribers I've tested so
far. But... when I uncommented a directory server (yp.icecast.org)
I see in the log:
directory_touch_xa([yp.icecast.org:80]) completed...server id = 69
and about the same time the clients
2007 Nov 18
0
question regarding time series packages
Good afternoon!
I'm trying to learn time series but i have a bit of of a problem using R packages for this.
1.
> LakeHuron
> sample(500:600, 98)
> sample(500:600, 98)->t
> fit<-arima(LakeHuron, order=c(2,1,1), xreg=t)
> fit
> predict(fit, n.ahead=1, newxreg=t)
Now, my problem is this: is it ok to use the same t in predict function or should my newxreg contain 99
2007 Apr 18
2
[Bridge] Bridge Problem with RedHat and iptables
Hello,
I am running into a strange problem here. I wrote you a mail earlier
also regarding this.
1. I am trying to run the bridge mode over Redhat 7.3 (kernel 2.4.18).
I tried the latest version of brdige mode utility and also I tried
version 0.94 as well. But whenever I run the brdige mode on this
kernel - the kernel goes panic saying "aiee - killing interrupt
handler". Now I am in a