similar to: Statistical Quality Control

Displaying 20 results from an estimated 4000 matches similar to: "Statistical Quality Control"

2003 May 30
2
Need help installing qtoolbox
I have windows version of R v1.6.2 I have downloaded the qtoolbox.zip from http://www.cmis.csiro.au/S-PLUS/qtoolbox/ My R command line is > install.packages("C:/Program Files/R/qtoolbox.zip", .libPaths()[1], CRAN = NULL) and I get the following error message: updating HTML package descriptions Warning message: error -1 in extracting from zip file > Is there another way to
2004 Feb 24
2
Statistical Quality Control
Greetings, I've been familiarizing myself with the features of R over the past few days. I'm impressed with the quality and quantity of the features and packages. One feature that I would be interested in would be a package for statistical quality control. Does a package for statistical quality control exist that I've been unable to locate? If not, is anyone aware of efforts to
2006 Apr 28
2
How to get a grid behind a boxplot
I am using R 2.2.1 on a Windows 2000 PC. When I do a grid() after the boxplot it overprints the boxplot: > boxplot(count ~ spray, data = InsectSprays, col = "lightgray") > grid(nx=NA, ny=NULL) > if I try the panel.first > boxplot(count ~ spray, data = InsectSprays, col = "lightgray", + panel.first=grid(nx=NA, ny=NULL)) > I can see the grid flash
2007 Feb 16
1
Sampling distribution of the range statistic
R-helpers: In the construction of control charts for statistical quality control objectives, one might choose to estimate the control limits for the mean using the mean range of the samples. This requires multiplying the mean range by a correction factor, often called "d2", that is tabulated in many books. The origin of "d2" seems to be table 2 of the following paper:
2010 Aug 20
0
plotting moving range control chart with qcc. . .
This regards an old post that posed the question: Tom Hodgess wrote: "The problem is the (apparent?) inability to produce moving range process behavior (a.k.a. "control") charts with individuals data in the package "qcc" (v. 2.0). I have also struggled with the same limitation in package "IQCC" (v. 1.0). The package "qAnalyst" (v. 0.6.0) provides an
2010 Feb 11
0
Regarding a error while plotting R chart using qcc package.
On 11 Feb 2010, at 06:53, Vikrant Shimpi wrote: > Dear Luka , > I am using qcc package in R to plot SPC charts. BUt while plotting > R chart I had a error. My question is it necessary while plotting > R Chart the group sample size must be < 25 ?. Because when I took > group sample size as 1000 it gave me error, till I took group sample > size as 26, But as sooon as
2002 May 18
0
Fish and 'must read' statistics books. My last word, promise!
I seem to have unwittingly stirred up a hornets' nest here, so let me have one more say and leave it. Firstly, congratulations to Renaud Launcelot, who seems to have a better feel for wryness and irony in English than some of my native speaker colleagues. Of course R A Fisher is a seminal writer, indeed close to the founder of modern statistics and every aspiring statistician should read
2009 Aug 13
0
Limited number of replicates in qcc()?
Dear R-users, I'm encoutering some problems with the qcc()-function. When there are more than 25 replicates per "sample" the estimate for the standard deviation becomes NA, implying that nothing is plotted (error message: "Error in plot.window(...) : need finite 'ylim' values") On the forum I found a way to work around the error message, but this does not
2008 Sep 13
1
QCC - Change Background Color and Remove X Axis Text
Hi, I am working with QCC and would like help with the following: a) Change the color of the background. I tried bg="#FFFFFF" in par and also in qcc and it did not work. b) I want to remove the X Axis Text (i.e. 1, 2, 3 ... n) -- but xaxt="n" does not work in qcc. Thanks -- View this message in context:
2007 May 13
2
Oddities upgrading from 2.4.1 to 2.5.0
I'm working on Windoze XP and have for some time installed R in D:\R and upgraded my packages after installing the new version of R with a bit of code I think I got from the list: ip <- installed.packages(lib.loc = "d:\\R\\R-2.4.1\\library") ip <- ip[ip[,1]!="base" ,1] install.packages(ip) This time around that's produced some warning grumbles: Warning messages:
2005 Feb 04
1
QCC and PlotMath question
For some reason, using the qcc package, I'm unable to use the plotmath notation in the title. Can anyone see what I'm doing wrong? library(qcc) a <- rnorm(100) qcc(a,type="xbar.one",title=expression(bar(X)),ylab=expression(CFU/ft^3) ) This seems to not let the expression be evaluated, so I tried:
2019 Aug 21
2
Resumen de R-help-es, Vol 126, Envío 9
Estimado Martín, Prueba a usar el parámetro ?restore.par = FALSE? a la hora de imprimir. Ejemplo reproducible en el código de mi libro ?Quality Control with R?: http://qualitycontrolwithr.com/chapters.html <http://qualitycontrolwithr.com/chapters.html> (Descarga el código del capítulo 9) Un saludo, Emilio > > > Asuntos del día: > > 1. qcc con par (Martin Vidalon)
2019 Aug 20
2
qcc con par
Hola colegas, por favor si me indican que estoy haciendo mal. Estoy tratando de usar el paquete QCC y colocar mas de gráfico de control en una sola ventana usando función "par" con "qcc" para presentar varios gráficos en la misma ventana. He probado pero no funciona, solo muestra un gráfico miren el código # set unequal sample sizes n <- c(rep(50,5), rep(100,5), rep(25, 5))
2009 Sep 10
1
importing/loading package without a namespace
I am developing a package that imports some functions from another package. The imported package (qcc) does not have a namespace and this is causing problems with loading of my package, which has a namespace. Is there a workaround to allow loading the namespace-less package? I searched the archives and found a suggestion that the package should be included in the Depends list, but this has not
2008 Sep 02
2
qcc help
Hi Gents, I need to get the control limits from qcc function. As follows: qcc(MDI, type = "xbar.one") Call: qcc(data = MDI, type = "xbar.one") xbar.one chart for MDI Summary of group statistics: Min. 1st Qu. Median Mean 3rd Qu. Max. 0.3266 0.4249 0.4371 0.4333 0.4451 0.4858 Group sample size: 1 Number of groups: 383 Center
2010 Jan 13
1
plotting moving range control chart
I have been having the same problem as poster Hodgess, below. It appears that her question was never answered, so I would like to share a solution with the community. The problem is the (apparent?) inability to produce moving range process behavior (a.k.a. "control") charts with individuals data in the package "qcc" (v. 2.0). I have also struggled with the same limitation in
2007 Dec 03
1
help on qcc
Hello R Experts, I started to work with the qcc package and it wprks quite nicely. Heres My Code: n <- c(55,5,94,25,10,15,15,40,44,34,90,114,204,37,30,28,12,68,64,29,24,14,31,16,62,45,55,20,24,14,9,19,76,57,55,42,6, 54,32,117,19,32,9,11,13,31,27,33,44,28) x <- c(6,0,30,5,2,1,4,5,2,9,12,24,64,3,9,21,9,48,15,4,3,0,1,0,6, 7,2,0,3,2,0,5,1,2,6,9,1,6,2,0,1,4,8,0,1,1,3,0,0,0)
2007 Jul 03
1
termplot - changes in defaults
While termplot is under discussion, here's another proposal. I'd like to change the default for partial.resid to TRUE, and for smooth to panel.smooth. I'd be surprised if those changes were to break existing code. John Maindonald email: john.maindonald at anu.edu.au phone : +61 2 (6125)3473 fax : +61 2(6125)5549 Centre for Mathematics & Its Applications, Room
2016 Feb 08
0
--link-dest not working on remote server (running daemon)
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 try: --link-dest=../backup-2016-02-01-0100 On 02/08/2016 04:51 PM, Sam Holton wrote: > Thanks for the reply. The link-dest is different. It is Feb 1 while > the source is Feb 2. > > I tried setting path = /media/external/ for the daemon and using > > rsync -a -v -i --delete --link-dest=backup-2016-02-01-0100 >
2007 Jun 04
2
Re: Ajax.Request question with JSON return
Do I need something like this: eval(''('' + this.header(''X-JSON'') + '')'') (taken from Cody Swann, http://ajaxian.com/archives/prototype-extension-dynamic-script-pattern-support ). I''m guessing my problem is simpler, and I''m leaving something small out related to the header though. Thanks for any help -Mark 1. evalJSON: