Displaying 20 results from an estimated 29 matches for "wafer".
Did you mean:
safer
2005 Nov 01
1
coding nesting in data for nlme example of Wafer data set.
...trying to understand the proper way to encode the nesting structure
for data in the context of nlme, in the specific case of individuals
nested within species for which each individual is unique. I have
searched through Pinheiro & Bates and also past postings, but without
success.
Take the Wafer data set which has 2 levels: Wafer (8 values) and Site
nested within Wafer (10 values for each value of Wafer) (Pinheiro &
Bates book). The data set has Sites coded as values from 1 to 8 for
Wafer 1, values 1 to 8 for Wafer 2 etc. Does this mean that the SAME
sites are used for each Wafer (i...
2004 Apr 29
1
Plot.lme error
Dear All;
Attempting to reproduce Figure 4.15 of MEMSS (p. 171) in R using
plot(Wafer, outer = ~ Wafer)
yields an error:
> plot(Wafer, outer = ~ Wafer)
Error in order(na.last, decreasing, ...) :
Argument lengths differ
The plot() produces the figure without problems for all versions of
Splus (4.5 to 6.2) on Windows. Noticing that the plot() differs slightly
between R...
2005 Sep 29
1
lmer random effect model matrix question
I have one fixed effect, sor, with two levels. I have eight lots and
three wafers from each lot. I have included the data below.
I would like to fit a mixed model that estimates a covariance parameter
for wafer, which is nested in lot, and two covariance parameters for
lot, one for each level of sor. The following command fits the model
that I want, except for it estimates...
2006 Feb 08
2
lme syntax for P&B examples
...lt;- lmer(pixel ~ day + I(day^2) +(1|DS), data = Pixel))
(fm4Pixel <- lmer(pixel ~ day + I(day^2) +Side , data = Pixel))
#Oxide
# P&B(2000) p167-170
Oxide<-read.csv("Oxide.csv",header=TRUE);
Oxide$Source<-as.factor(Oxide$Source)
Oxide$Lot<-as.factor(Oxide$Lot)
Oxide$Wafer<-as.factor(Oxide$Wafer)
Oxide$Site<-as.factor(Oxide$Site)
fm1Oxide<-lmer(Thickness~ (1|Lot)+(1|Lot:Wafer),data=Oxide) )
(fm2Oxide<-lmer(Thickness~ (1|Lot),data=Oxide) )
coef(fm1Oxide)
[[alternative HTML version deleted]]
2009 Aug 21
1
trouble with Vista & reading files
...So it is some sort
of permissions thing.
##############################################
cro.etest.grab <- function(dataDir="raw.etest.data", header="hdr",
dataHeaders="datasets/eTestDataHeaders.txt",
slotCol="Wafer", dateFormat="%m/%d/%Y %H:%M:%S",
lotCol="eTestLotID") {
### Function: grab data in its raw form from SVTC's HP electrical tester and
### "munge" it into a format more friendly for analysis in R.
### Requires: dataDir --...
2011 May 20
2
Variability plot in R
...plots appear in the same window; below the x-axis a hierarchy of factors
shows which dot plot corresponds to which factor-level combination.
Examples can be seen
http://statsoft.com/support/blog/entryid/64/user-defined-variability-plots/
and
http://www.public.iastate.edu/~wrstephe/stat495/GaugeRR_WaferThickness_JMPOutput.pdf
By reordering the factor names in the function call, the user can reorder the factor level combinations on the graph, making it easier
to do the visual comparisons of interest. The user should also have the option to draw line segments at factor level combination means/medi...
2007 Jan 12
1
wafer map drawing
Hello R-Users!
Does anyone know of a package to draw/analyze silicon wafer maps?
Here are some examples
http://www.java2s.com/Code/Java/Chart/JFreeChartWaferMapChartDemo.htm
http://dp.pdf.com/site/products/wafermap/binmap.html
I've google'd and searched CRAN with no luck.
It seems possible for R, given the hexbin and hist2d graphs I saw at the
Gra...
2006 Mar 29
1
lmer multilevel
...P&B.
using Matix 0.995
In the Oxide example in p167-170 I can't get the level 2 coefficient
estimates to match
the fm1Oxide model in lme is
data(Oxide,package="nlme")
lme(Thickness~1,Oxide)
which I translate in Lmer syntax to
fm3Oxide<-lmer(Thickness~ (1|Lot)+(1|Lot:Wafer),data=Oxide)
#or alternatively which gives the same result
Oxide$LW<-with(Oxide,Lot:Wafer)[drop=TRUE]
fm4Oxide<-lmer(Thickness~ (1|Lot)+(1|LW),data=Oxide)
however if you look at say Lot 8, lme gives
8 1993.767
8/1 1993.677
8/2 1995.170
8/3 1990.693
while lmer gives
coef(...
2005 Jun 26
1
Components of variance
Could someone identify a function that I might use to perform a
components of variance analysis? In addition to the variance
attributable to each factor, I would also like to obtain the SE of the
variances.
Thank you,
John
John Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
Baltimore VA Medical Center GRECC and
University of Maryland School of Medicine Claude Pepper OAIC
University of
2006 Jan 09
2
warning message from nlme
Hi all,
I tried to do a variance components using nlme, but I got the following
warning mesage
#####################################################
not meaningful for factors in: Ops.factor(y[revOrder], Fitted)
######################################################
Can someone point out what is the meaning of this warning message? I
tried to look at Ops.factor, but I don't
2004 Sep 05
1
Question to NLME, ML vs. REML
Dear all,
I am planning to use nlme library for analysis of experiments in semiconductor
industry. Currently I am using "lm" but plan to move to "lme" to handle
within wafer / wafer-to-wafer and lot-to-lot variation correctly.
So far everything is working well, but I have a fundamentel question:
NLME offers "maximum likelihood" and "restricted maximum likelihood" for
parameter estimation. ML has the advantage, that likelihood ratios can be
com...
2004 May 27
1
Crossed random effects in lme
Dear all,
In the SASmixed package there is an example of an analysis of a split-plot experiment. The model is
fm1Semi <- lme( resistance ~ ET * position, data = Semiconductor, random = ~ 1 | Grp)
where Grp in the Semiconductor dataset is defined as ET*Wafer. Is it possible to specify the grouping directly some way, e.g. like
fm1Semi <- lme( resistance ~ ET * position, data = Semiconductor, random = ~ 1 | ET*Wafer)
(this does not work, I know, but somehow I would expect it to be possible to get around having to define a new variable in the data...
2006 Jan 16
1
singular convergence(7)?
Hi all,
I just wonder what singular convergence means. Thanks.
Yen Lin
Error in lme.formula(Data ~ 1, random = ~1 | Wafer/fie/loc, subset =
Wafer == :
singular convergence (7)
[[alternative HTML version deleted]]
2012 May 14
2
How to interpret an ANOVA result?
Hello all,
here's a real-world example: I'm measuring a quantity (d) at five
sites (site1 thru site5) on a silicon wafer. There is a clear
site-dependence of the measured value. To find out if this is a
measurement artifact I measured the wafer four times: twice in the
normal position (posN), and twice rotated by 180 degrees (posR). My
data looks like this (full, self-contained code at bottom). Note that
sites with t...
2002 Apr 18
2
No subject
...data<-read.csv("C:\\data.txt")
cnames<-colnames(data)
data$Vendor=as.factor(data$Vendor)
data$Yield=as.numeric(data$Yield)
data.ltr <- tree(Yield ~ ., data)
Output:
> data.ltr
node), split, n, deviance, yval
* denotes terminal node
1) root 22 18.590 1.1360
2) X0100.WAFER.START.SCRIBE.PROD:
1TAGG3,1TAHK2,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA
17 3.059 0.7647
4) e.F: 0,2,5 6 1.333 0.3333 *
5) e.F: 1,3,4 11 0.000 1.0000 *
3) X0100.WAFER.START.SCRIBE.PROD: 1TAHL7,NA,NA,NA 5
5.200 2.4000 *
>
__________________________________________________
Do Y...
2006 Mar 29
1
Lmer BLUPS: was(lmer multilevel)
...n P&B.
using Matix 0.995
In the Oxide example in p167-170 I can't get the level 2 coefficient
estimates to match the fm1Oxide model in lme is
data(Oxide,package="nlme")
lme(Thickness~1,Oxide)
which I translate in Lmer syntax to
fm3Oxide<-lmer(Thickness~ (1|Lot)+(1|Lot:Wafer),data=Oxide) #or
alternatively which gives the same result
Oxide$LW<-with(Oxide,Lot:Wafer)[drop=TRUE]
fm4Oxide<-lmer(Thickness~ (1|Lot)+(1|LW),data=Oxide)
however if you look at say Lot 8, lme gives
8 1993.767
8/1 1993.677
8/2 1995.170
8/3 1990.693
while lmer gives
coef(f...
2010 Aug 14
4
\" character in folder name results in strange LIST
Hi Timo,
>> * LIST (\HasNoChildren) "/" "folder1"
>> * LIST (\HasNoChildren) "/" "folder2"
>> * LIST (\HasNoChildren) "/" {9}
>> six"wafer
>> . OK List completed.
>>
>> Note the {9} length of the following real folder name. Is this normal
>> handling of special folder names ?
>Yes.
Well, I did try other servers and e.g. on scalix I'm getting this:
* LIST (\X-DirectRef=000d7f94a4731510 \X-ModDate=201...
2002 Apr 18
0
Re: printing tree results
...lt;-colnames(data)
> data$Vendor=as.factor(data$Vendor)
> data$Yield=as.numeric(data$Yield)
> data.ltr <- tree(Yield ~ ., data)
>
> Output:
> > data.ltr
> node), split, n, deviance, yval
> * denotes terminal node
>
> 1) root 22 18.590 1.1360
> 2) X0100.WAFER.START.SCRIBE.PROD:
> 1TAGG3,1TAHK2,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA
> 17 3.059 0.7647
> 4) e.F: 0,2,5 6 1.333 0.3333 *
> 5) e.F: 1,3,4 11 0.000 1.0000 *
> 3) X0100.WAFER.START.SCRIBE.PROD: 1TAHL7,NA,NA,NA 5
> 5.200 2.4000 *
> >
-.-.-.-.-.-.-.-.-.-.-.-....
2007 Aug 09
1
Help on R performance using aov function
...SAS software. So it?s a great problem of performance for me.
Here is an extract of the calculation:
stoutput<-file("res_oneWayAnova.dat","w");
cat("Param|F|Prob",file=stoutput,"\n");
for (i in 1:n) {
p<-list_param[[i]]
aov_<-aov(A[,p]~ A[,"wafer"],data=A);
anova_<-summary(aov_);
if (!is.na(anova_[[1]][1,5]) & anova_[[1]][1,5]<=0.0001)
res_aov<-cbind(p,anova_[[1]][1,4],"<0.0001") else
res_aov<-cbind(p,anova_[[1]][1,4],anova_[[1]][1,5]);
cat(res_aov, file=stoutput, append = TRUE,sep = "|","...
2020 Oct 13
2
Samba SSSD authentication via userPrincipalName does not work because samba claims that the username does not exist.
On 13/10/2020 15:01, Markus Jansen via samba wrote:
> Thank you very much for your hints.
>
> I got rid of SSSD and managed to get a successful kerberos
> authentication via wbinfo -K and the UPN.
>
> But accessing via SMB (using MAC OS' smbutil or Finder) still fails with
> "FAILED with error NT_STATUS_NO_SUCH_USER".
>
> As I'm using CentOS 8, I used