Displaying 20 results from an estimated 33 matches for "quantifications".
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quantification
2011 Jun 18
0
help with quantification of high density region
Hello,
I am entirely new to this list, and not very experienced with R yet (but very excited about it!!). I am struggling with a dataset of x and y coordinate points I am plotting as a density map as follows:
trial <- read.csv(file="F12.csv", sep=",", skip=32, head=TRUE)
trial.sub <- subset(trial, Seconds>=30)
trial.sub <- subset(trial.sub, Seconds<=1830)
d
2009 Aug 20
1
Questions on factors in regression analysis
...ctor predictor
factors.quant <- rep(c(18.8,29.9),c(10,10)) ##quantificatio of factors
factors.quant.1 <- rep(c(16.9,38.9),c(10,10))
##second quantificatio of factors
response <- 0.8*x + 18 + factors.quant + rnorm(20) ##response
lm.quant <- lm(response ~ x + factors.quant) ##lm with quantifications
lm.fact <- lm(response ~ x + factors) ##lm with factors
lm.quant.1 <- lm(response ~ x + factors.quant.1) ##lm with quantifications
lm.fact.1 <- lm(response ~ x + factors) ##lm with factors
par(mfrow=c(2,2)) ## comparisons of two fittings
plot(x, response)
lines(x,fitted(lm.quant),col=&qu...
2006 Oct 23
2
Recurrence plot in package "tseriesChaos"
Hi,
I'm a new user of the R package, and I need to generate recurrence plots for a set of 56 time series data. The package tseriesChaos has the function "recurr" that gives a plot. But what I really need are the recurrence plot parameters that are calculated from each plot (like %recur, %det, trend, etc...) and that can be stored dynamically in a output file for all the 56 datasets.
2009 Sep 19
0
homals package and core loop
...v31/i04
will get a major programming overhaul. This will take some time,
but what's a few years on a 40-year project. Suggestions
from the audience are welcome.
homals() has a core loop over the m variables in which
1. tapply is used to compute category quantification (centroids)
2. category quantifications are then adjusted to satisfy the
rank and level constraints
The idea is to replace 1 by least squares fitting of a B-spline and
to adjust 2 accordingly. The core will be re-programmed in C
and/or FORTRAN (sometimes using existing routines), and the loop over
variables will be parallelized using...
2009 Sep 19
0
homals package and core loop
...v31/i04
will get a major programming overhaul. This will take some time,
but what's a few years on a 40-year project. Suggestions
from the audience are welcome.
homals() has a core loop over the m variables in which
1. tapply is used to compute category quantification (centroids)
2. category quantifications are then adjusted to satisfy the
rank and level constraints
The idea is to replace 1 by least squares fitting of a B-spline and
to adjust 2 accordingly. The core will be re-programmed in C
and/or FORTRAN (sometimes using existing routines), and the loop over
variables will be parallelized using...
2009 Mar 11
1
OT: Likelihood ratio for the randomization/permutation test?
Hi guRus,
My discipline (experimental psychology) is gradually moving away from
Null Hypothesis Testing and towards measures of evidence. One measure
of evidence that has been popular of late is the likelihood ratio.
Glover & Dixon (2005) demonstrate the calculation of the likelihood
ratio from ANOVA tables, but I'm also interested in non-parametric
statistics and wonder if anyone has any
2017 Oct 12
1
Recurrence plots in R using different colours
Hello,
I am an absolutely beginner with regards to R, so forgive me for my
potentially very stupid questions.
I have been attempting to create recurrence plots using R. The data I am
using is based on a mutually exclusive and exhaustive coding scheme with
over 40 individual codes which can be assigned to 6 higher order categories.
When I carry out the usual rqa command, my plot is pretty much
2011 Jun 24
2
mgcv:gamm: predict to reflect random s() effects?
Dear useRs,
I am using the gamm function in the mgcv package to model a smooth relationship between a covariate and my dependent variable, while allowing for quantification of the subjectwise variability in the smooths. What I would like to do is to make subjectwise predictions for plotting purposes which account for the random smooth components of the fit.
An example. (sessionInfo() is at
2015 Aug 01
3
[LLVMdev] [cfe-dev] Clang devirtualization proposal
On Fri, Jul 31, 2015 at 6:18 PM, Reid Kleckner <rnk at google.com> wrote:
> Consider this pseudo-IR and some possible transforms that I would expect to
> be semantics preserving:
>
> void f(i32* readonly %a, i32* %b) {
> llvm.assume(%a == %b)
> store i32 42, i32* %b
> }
> ...
> %p = alloca i32
> store i32 13, i32* %p
> call f(i32* readonly %p,
2010 Jan 31
0
Bioinformatician, Austria
We are looking for a MSc or PhD holder in
Bioinformatics,Molecular/Computational Biology or Computer Science to
support ourbiomarker team in the identification, validation and
furtherdevelopment of biomarkers. The chosen candidate will be part of
ourmultidisciplinary team conducting studies to discover and
developdiagnostic biomarkers as well as biomarkers for the
characterization ofdisease models
2007 Dec 23
0
anacor: yet another ca package
...rd scaling, Benz?cri
scaling, Goodman scaling, row-centroid, or column-centroid
scaling.
The summary method writes out a table with the chi-square
(inertia) decomposition, it also writes out the singular
values, and their asymptotic standard errors under multinomial
sampling. Plots of the category quantifications (row scores
and column scores) can be made optionally with asymptotic
confidence ellipses, again based on multinomial sampling.
The package contain various utilities to switch data formats,
in particular to transform data frames to Burt matrices,
to indicator matrices, and even to fuzzy indicator...
2009 Aug 13
0
dcemri: A package for medical image analysis
dcemri 0.10 has been released on CRAN
"dcemri" is (to the best of my knowledge) the first public-domain software
package for the quantitative analysis of dynamic contrast-enhanced MRI
(DCE-MRI) and diffusion-weighted MRI (DW-MRI or DWI). Data import and
export is availble for ANALYZE or NIfTI data formats (sorry, no DICOM).
Images are stored in neurological format regardless of the
2006 Dec 03
0
overplot() examples fail (package:gplots)
require(gplots)
data(rtPCR)
overplot( RQ ~ Conc..ug.ml. | Test.Substance,
data=rtPCR,
subset=Detector=="ProbeType 7" & Conc..ug.ml. > 0,
same.scale=TRUE, log="xy", f=3/4,
main="Detector=ProbeType 7",
xlab="Concentration (ug/ml)",
ylab="Relative Gene Quantification"
)
# Error in lowess.default(mf[[-response]], mf[[response]], f = f,
2007 Dec 23
0
anacor: yet another ca package
...rd scaling, Benz?cri
scaling, Goodman scaling, row-centroid, or column-centroid
scaling.
The summary method writes out a table with the chi-square
(inertia) decomposition, it also writes out the singular
values, and their asymptotic standard errors under multinomial
sampling. Plots of the category quantifications (row scores
and column scores) can be made optionally with asymptotic
confidence ellipses, again based on multinomial sampling.
The package contain various utilities to switch data formats,
in particular to transform data frames to Burt matrices,
to indicator matrices, and even to fuzzy indicator...
2009 Aug 13
0
dcemri: A package for medical image analysis
dcemri 0.10 has been released on CRAN
"dcemri" is (to the best of my knowledge) the first public-domain software
package for the quantitative analysis of dynamic contrast-enhanced MRI
(DCE-MRI) and diffusion-weighted MRI (DW-MRI or DWI). Data import and
export is availble for ANALYZE or NIfTI data formats (sorry, no DICOM).
Images are stored in neurological format regardless of the
2005 Nov 06
0
R for Psychometrics
...espondence analysis, nonlinear principal
component analysis, nonlinear multiset canonical
correlation analysis. Implements everything in Gifi (1990)
or SPSS Categories, and then some. Status: done.
-- aspect package (optimizing functions of correlation
matrices over transformations/quantifications of the variables --
functions implemented are sums of eigenvalues, determinants,
multiple
correlations, power sums). Status: done.
-- optim package (miscellaneous optimization routines -- currently has
pooled-adjacent-violaters for monotone regression and
the hildreth-desopo coor...
2018 Mar 21
0
Error in GDCprepare step of TCGAbiolinks
Dear Sir/ma'am,
I'm using R-3.4.4 and TCGAbiolinks package for the analysis of GDC data.
Till today i have reintalled R and R studio for 5 times but one error comes
when i analyze the GDC data at the step GDCprepare. the data i am using is
not a legacy data of GDC data portal.
I think the problem is with my Laptop only because i have run the same
commands in another PC and there was no
2010 Sep 15
0
Biostatistician position, Austria
Dear all,
My company located in Innsbruck, Austria, has an opening for a
biostatistician. If you have any interest, feel free to contact me or Dr
Markus Speiser (markus.speiser*at*biocrates.com).
Best regards,
David
##################
Biostatistician (m/f)
Job Description
BIOCRATES Life Sciences AG is a leading metabolomics company using a
mass-spectrometry based technology
2004 Aug 18
6
Report of collision-generation with MD5
Just got a pointer to this via ACM "TechNews Alert" for today:
http://www.acm.org/technews/articles/2004-6/0818w.html#item2
Seems that "... French computer scientist Antoine Joux reported on
Aug. 12 his discovery of a flaw in the MD5 algorithm, which is often
used with digital signatures...."
There's more in the article cited above.
Peace,
david
--
David H. Wolfskill
2008 Jul 23
3
Quantitative analysis of non-standard scatter plots.
Hi,
I am having difficulties in finding ways to analyse scatter plots and
quantitatively differentiate between them. Since this is best demonstrated
by a figure, I have attached one with 4 subfigures (a)-(d). Qualitatively
(and I hope you would agree with me), sub-figures (a), (b), and (d) seem to
represent uniform 2d scatters. It is hard for me to quantify it, but it
seems as if the envelopes