Displaying 20 results from an estimated 200 matches similar to: "dcemri: A package for medical image analysis"
2009 Dec 22
0
dcemriS4: A package for medical image analysis (S4 implementation)
dcemriS4: A package for medical image anlaysis
The dcemriS4 package is a major update, and S4 implementation, of the
dcemri package.? All previous functionality has been replicated, for
DCE-MRI and DWI, with specific emphasis on cancer imaging
applications.? Additional major features include:
? o S4 classes for NIfTI and Analyze data formats that merges header
and data information
o
2009 Dec 22
0
dcemriS4: A package for medical image analysis (S4 implementation)
dcemriS4: A package for medical image anlaysis
The dcemriS4 package is a major update, and S4 implementation, of the
dcemri package.? All previous functionality has been replicated, for
DCE-MRI and DWI, with specific emphasis on cancer imaging
applications.? Additional major features include:
? o S4 classes for NIfTI and Analyze data formats that merges header
and data information
o
2007 May 04
0
Predicted Cox survival curves - factor coding problems...
I am trying to use the survfit() function with the newdata argument to
produce predicted survivor curves for a particular covariate profile.
The main purpose of the plot will be to visualise the effect of snp1,
coded 0 and 1. In my Cox model I have stratified by one variable, edu, and
so I know I will automatically get a separate curve for each strata. My
problem is how to deal with the
2009 Mar 24
0
Has someone connected R with ITK?
Dear R users,
I am curious to know if someone has connected R with the Insight
Segmentation and Registration Toolkit (www.itk.org). From the website...
ITK is an open-source, cross-platform system that provides developers with
an extensive suite of software tools for image analysis.
Developed through extreme programming methodologies, ITK employs
leading-edge algorithms for registering and
2009 Apr 01
0
smv() in "e1071" and the BreastCancer data from "mlbench"
R-help,
I am trying to perform a basic anlaysis of the BreastCancer data from
"mlbench" using the svm() function in "e1071". I use the following code
library("e1071")
library("mlbench")
data(BreastCancer)
BC <- subset(BreastCancer, select=-Id)
pairs(BC)
model <- svm(Class ~ ., data=BC, cross=10)
## plot(model, BC, )
tobj <- tune.svm(Class ~ .,
2009 Jul 20
0
Vacancy - PhD / Post-doctoral position at the University of Leiden.
TOP Institute Pharma (TI Pharma) has granted our proposal to set up a
mechanism-based PKPD modelling platform. This platform focuses on the
transfer of knowledge from academia to the pharmaceutical industry and is
a collaborative effort of four excellent academic institutes and six
leading global pharmaceutical industries. Unique to this platform is the
availability of shared databases on
2010 Sep 08
0
New package for medical image registration: RNiftyReg
The first release of "RNiftyReg", an R package for registration
(alignment and resampling) of medical images, is now available on CRAN
[1]. It may also be useful for other 3D array-like data sets.
RNiftyReg is built on top of the NiftyReg library [2], and is written
in a mixture of C, C++ and R. It currently supports 3D rigid-body and
affine registration, and support for 2D and nonlinear
2010 Sep 08
0
New package for medical image registration: RNiftyReg
The first release of "RNiftyReg", an R package for registration
(alignment and resampling) of medical images, is now available on CRAN
[1]. It may also be useful for other 3D array-like data sets.
RNiftyReg is built on top of the NiftyReg library [2], and is written
in a mixture of C, C++ and R. It currently supports 3D rigid-body and
affine registration, and support for 2D and nonlinear
2012 Apr 11
0
Significant updates to medical imaging packages: TractoR and RNiftyReg
Dear all,
There have been some recent major updates to the TractoR and RNiftyReg
packages, which are available for medical image analysis applications.
If you use R for these purposes, I hope you will find the updates
useful.
RNiftyReg is an image registration package, which provides a clean
R-like interface to the NiftyReg library developed at University
College London [1]. It is aimed at
2012 Apr 11
0
Significant updates to medical imaging packages: TractoR and RNiftyReg
Dear all,
There have been some recent major updates to the TractoR and RNiftyReg
packages, which are available for medical image analysis applications.
If you use R for these purposes, I hope you will find the updates
useful.
RNiftyReg is an image registration package, which provides a clean
R-like interface to the NiftyReg library developed at University
College London [1]. It is aimed at
2009 May 20
0
New package for medical image manipulation: tractor.base
Dear all,
The "tractor.base" package has recently been added to CRAN. This
package provides functions to read, write, visualise and manipulate
magnetic resonance images. The standard Analyze, NIfTI and DICOM file
formats are supported (read-only for DICOM), and all metadata is
stored with the image data internally. The code can be used to
visualise image slices or maximum intensity
2009 May 20
0
New package for medical image manipulation: tractor.base
Dear all,
The "tractor.base" package has recently been added to CRAN. This
package provides functions to read, write, visualise and manipulate
magnetic resonance images. The standard Analyze, NIfTI and DICOM file
formats are supported (read-only for DICOM), and all metadata is
stored with the image data internally. The code can be used to
visualise image slices or maximum intensity
2006 Jan 25
2
how to test robustness of correlation
Hi, there:
As you all know, correlation is not a very robust procedure. Sometimes
correlation could be driven by a few outliers. There are a few ways to
improve the robustness of correlation (pearson correlation), either by
outlier removal procedure, or resampling technique.
I am wondering if there is any R package or R code that have incorporated
outlier removal or resampling procedure in
2006 Jun 14
1
matrix log
Dear R users,
Has anyone implemented a "matrix log" function in R similar to the
function logm() in Matlab? I did a quick R site search and browsed the
contributed packages to no avail.
The octave function is far too simplistic and fails for the Matlab test
matrix. Ideally, the code of Cheng, Higham, and Laub (2001) or something
similar could be utilized. Just checking before I
2009 Dec 15
1
Reference to R in Publication
Magazine: Pharmaceutical Manufacturing
Date: Nov/Dec 2009
Title: What Your ICH Q8 Design Space Needs: A Multivariate Predictive
Distribution
Author: Peterson, John J.
Company: GlaxoSmithKline Pharmaceuticals
Summary: Multivariate Predicitive distibution quantifies the level of QA
in a design space. "Parametric Bootstrapping" can help simplify early
analysis and compliment Bayesian
2004 Dec 13
0
multivariate permutation tests
Dear R users,
I am looking for code to perform a permutation version of the multivariate
two-sample test (difference in means). I am aware of F. Pesarin's book
and website, but his single S-Plus function does not work in R (for
various reasons). Has anyone adapted (or added to) PermutationTestMeans()
so that it does work in R? Or do you know of an alternative
implementation that does
2005 Aug 22
0
New CRAN package: DICOM
The package DICOM is a first attempt at a set of routines to import and
summarize medical imaging data that conforms to the DICOM standard. This
is now the industry standard for a wide variety of medical imaging
equipment (e.g., PET, MRI, CT, etc.). Please see http://medical.nema.org
for more information about the DICOM standard. A simple list structure
holds the separate header and image
2005 Aug 22
0
New CRAN package: DICOM
The package DICOM is a first attempt at a set of routines to import and
summarize medical imaging data that conforms to the DICOM standard. This
is now the industry standard for a wide variety of medical imaging
equipment (e.g., PET, MRI, CT, etc.). Please see http://medical.nema.org
for more information about the DICOM standard. A simple list structure
holds the separate header and image
2004 Nov 01
0
updated package waveslim 1.4
waveslim 1.4 has recently been uploaded to CRAN and is fully compatible
with Rv2.0. Besides ensuring usability with the most recent version of R,
two additional "flavors" of wavelet methodology have been added to the
package: (1) Hilbert wavelet pairs and (2) the dual-tree complex wavelet
transform [only 1D and 2D ported from Matlab code by Selesnick]. The
dual-tree CWT code has
2004 Nov 01
0
updated package waveslim 1.4
waveslim 1.4 has recently been uploaded to CRAN and is fully compatible
with Rv2.0. Besides ensuring usability with the most recent version of R,
two additional "flavors" of wavelet methodology have been added to the
package: (1) Hilbert wavelet pairs and (2) the dual-tree complex wavelet
transform [only 1D and 2D ported from Matlab code by Selesnick]. The
dual-tree CWT code has