Displaying 20 results from an estimated 20000 matches similar to: "CRAN I-MR / Xbar-R / Xbar-S control chart package ?"
2017 Jul 08
0
CRAN I-MR / Xbar-R / Xbar-S control chart package ?
Hello,
I have no experience with I-MR charts but a google search found package
qcc. Maybe it's what you're looking for.
Hope this helps,
Rui Barradas
Em 08-07-2017 09:07, Tim Smith escreveu:
> Hi,
>
> I've had a quick look through the package list, and unless I've missed
> something, I can't seem to find anything that will do I-MR / Xbar-R /
> Xbar-S control
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
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
2013 Feb 08
2
qcc package
Greets,
My data looks like:
> p3.18
s xbar subgroup
1 0.84 12.2 1
2 1.64 11.2 2
3 2.07 10.6 3
4 2.49 12.2 4
5 0.84 11.2 5
...
Using the command
> qcc(p3.18$xbar,type="xbar",sizes=5,center=mean(p3.18$xbar),std.dev=mean(p3.18$s)/0.94,title="X-bar Chart for Paper Sheet Length Data")
I get the x-bar chart I expect.
However,
2010 Feb 04
6
problems with SPC charts in R
Hi all,
I am using SPC techniques of plotting Xbar, R, S, P and C charts in R.For
this I am using qcc package in R and also using the following document for
reference.
http://www.stat.unipg.it/~luca/Rnews_2004-1-pag11-17.pdf
But while plotting S chart, R chartchart and also C chart I am getting
following errors.
I have plotted the Xbar chart successfully using following command
obj <-
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
2009 Nov 11
2
plotting moving range control chart
Dear R People:
I am using qcc for a quality control class.
I have used qcc with type "xbar.one" for individuals but cannot
determine how to plot a moving range control chart.
Has anyone done that, please?
Thanks,
Erin
--
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com
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:
2007 Jul 25
3
Constructing bar charts with standard error bars
I am new to R.
I want to graph group data using a "Traditional Bar Chart with Standard
Error Bar", like the kind shown here:
http://samiam.colorado.edu/~mcclella/ftep/twoGroups/twoGroupGraphs.html
Is there a simple way to do this?
So far, I have only figured out how to plot the bars using barplot.
testdata <- scan(, list(group=0,xbar=0,se=0))
400 0.36038 0.02154
200 0.35927
2011 Jun 21
12
Resumen de R-help-es, Vol 28, Envío 31
Hola, soy María,
Estoy realizando un trabajo de control de calidad usando en R diferentes
tipos de "Control charts", desde el tipo xbar.one, u, p, c,...Y al validar
el cálculo de los estadísticos media y desviación típica de mis "Control
Charts" en Excel, e investigando, me he dado cuenta de que R calcula las
desviaciones de distinto modo según sea el tipo de control chart;
2018 Jan 29
2
Add ablines
Good morning,
I have some problem adding ablines in Rstudio.
The lines drew by the software doesen?t match with the added values, what can I do?
pfaOK<-qcc(D[!trial], sizes=size[!trial], type="p", nsigmas=2, data.name="Polli positivi al Campylobacter")
pfaOK1<-qcc(D[!trial], sizes=size[!trial], type="p", data.name="Polli positivi al Campylobacter")
2008 Jan 25
1
Need Advice with C# Program to Create and Display Cusum Chart
I need to write a C# program to create and display Cusum chart from any
of the packages,
spc, qcc or strucchange.
Issues:
1-The data resides in a MS SQL Database. The C# program will handle
obtaining the data for the requisite types of samples.
Assistance needed on:
1-How can I call the cusum capabilities of any of the above packages
and pass the data to the cusum function and plot?
2-How
2006 Apr 27
4
GD2 to Make Charts
I''m just getting started with GD2 and have successfully made a few
dynamic PNGs. I need to make some fairly detailed line graphs on the
fly and I know that GD2 is capable of what I want but I strongly suspect
I''m reinventing the wheel badly. Are there gems or other projects that
help creating complex charts? I''ve used GDChart in the distant past
but I
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:
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
2012 May 29
1
need help to find type I error rate for modified F statistic
Hello everyone, I want to calculate type I error rate for modified F
statistic for one way robust anova. I need to find the j group trimmed
mean and winsorized sum of squared deviations. Here I attached my code for
j=2 to make it simple. Originally I have j=4. Hope you can help. I need to
run it for 1000 times
My problem is:
i) the value of F-test obtain from my simulation below is in negative
2005 Nov 29
2
qcc
violating.runs
I read from the news
cran.r-project.org/doc/Rnews/Rnews_2004-1.pdf
that the criteria for the violating is 5 but
1)I cannot find "5" in the code of the function. Where is the "5" ?
2)What is the easiest way to change it ?
3)Is there any more criterias made somewhere ?
Yours sincerelly, Tommi Viitanen
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)
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))
2007 Jan 26
1
plotting results from tapply
Hi, there
I'm trying to plot what is returned from a call to tapply, and can't figure
out how to do it. My guess is that it has something to do with the
inclusion of row names when you ask for the values you're interested in,
but if anyone has any ideas on how to get it to work, that would be
stellar. Here's some example code:
y1<-rnorm(40, 2)
x1<-rep(1:2, each=20)