Displaying 20 results from an estimated 5000 matches similar to: "QCC and PlotMath question"
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,
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:
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
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
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
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
2017 Jul 08
2
CRAN I-MR / Xbar-R / Xbar-S control chart package ?
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 charts ?
Assuming there is something out there, can anyone point me in the
right direction ?
Thanks !
TIm
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 <-
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")
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
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 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)
2009 May 01
1
Problem with qcc
Hi All,
Already searched the net for a solution, but couldn't find one.
The piston ring example works fine on my XP laptop and R installation.
However, using the dataset enclosed (I've also enclosed the script file
used) only type="S" works and both "R" and "xbar" don't. Entering ylim works
better but still control limits are not calculated.
2011 Oct 14
3
qcc package
Hi All,
I installed qcc package and the dependency packages. For the first time I can use the function : process.capability.sixpack(). But later when ran the code again I always got the following error: Error: could not find function "process.capability.sixpack". I tried reinstalling the qcc package but didn't help. Does anyone have this kind of experience? Thank you!
Regards,
Yan
2004 Jul 26
1
qcc package & syndromic surveillance (multivar CUSUM?)
Dear R Community:
I am working on a public health early warning system, and
I see that the qcc package allows for CUSUM and other statistical quality tests
but I am not sure if my project is a good match for qcc functions as written.
Any advice you may have is very much appreciated.
I have four years worth of daily counts of emergency room admissions for
different conditions (e.g. respiratory,
2012 Dec 17
1
seeking a help on if function
Hello r helpers! Below is the whole coding for my programme. Before proceed more further, let me explain for you. First of all, I need to compute trimmed mean. Till that step is ok. Then I need to compute ssdw which is sum of square deviation. If I do equal trimming at both tail of distribution that I chose, I will use the first ssd formulae which is "a". But if I am doing unequal
2006 Jul 13
3
Corrupted Indexes - again...
I am still getting these in my maillog:
Jul 13 07:39:38 pop5.cfu.net dovecot: IMAP(breu at cfu.net): Corrupted index
cache file
/var/spool/mail/filer/storage//cfu.net/b/r/breu/dovecot.index.cache:
invalid record size
Jul 13 09:35:03 pop5.cfu.net dovecot: IMAP(breu at cfu.net): Corrupted index
cache file
/var/spool/mail/filer/storage//cfu.net/b/r/breu/dovecot.index.cache:
invalid record size
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
2003 Sep 09
1
How limits are set in a scales list
I have a lattice plot that has 4 pages with 4 columns and 8 rows per
page. I wish to have the rows use a separate x-axis since their
ranges are quite different, but I wish to have those same limits used
on each page.
By setting an element of the scales list to something like x = list(limits =
lim.list$CFU, lim.list$CFU, lim.list$CFU, lim.list$CFU,