Displaying 20 results from an estimated 100 matches similar to: "Homogenous groups building - Randomisation"
2006 Jan 11
1
Homogenic groups generation - Randomisation
Dear R-users,
We expect to create N homogenic groups of n features from an
experimentation including N*n mesures. The aim of this is to prevent from
group effects. How to do that with R functionalities. Does anyone know any
methodes enabling this ?
Best regards.
Alexandre MENICACCI
Bioinformatics - FOURNIER PHARMA
50, rue de Dijon - 21121 Daix - FRANCE
a.menicacci at fr.fournierpharma.com
t??l
2006 Mar 07
2
Building tkentry dynamicly
Dear R-users,
I would like to build N "tkentry" compounds in the same window, with
default text for each. As N is variable I need to construct them in an
iterative way :
library(tcltk)
main<-tktoplevel()
tktitle(main)<-"My Tool"
filenames<-c("toto","tata","titi")
N<-length(filenames)
for (i in 1: N) {
2005 Dec 02
1
Ancova and lme use
Dear R-users,
We expect to develop statistic procedures and environnement for the
computational analysis of our experimental datas. To provide a proof of
concept, we plan to implement a test for a given experiment.
Its design split data into 10 groups (including a control one) with 2
mesures for each (ref at t0 and response at t1). We aim to compare each
group response with control response
2005 Nov 25
1
covariance analysis by using R
Hi,
Is anyone has solved MR Xin Meng problem (see below) ?
We have the same analysis configuration : 10 groups (including control one)
with 2 mesures for each (ref at t0 and response at t1).
We expect to compare each group response with control response (group 1)
using a multiple comparison procedure (Dunnett test).
In order to perform this test, we have to normalize our data (as you) to
2005 Dec 05
0
Use of lme() function
Dear R-users,
We expect to develop statistic procedures and environnement for the
computational analysis of our experimental datas. To provide a proof of
concept, we plan to implement a test for a given experiment.
Its design split data into 10 groups (including a control one) with 2
mesures for each (ref at t0 and response at t1). We aim to compare each
group response with control response
2006 Mar 08
0
survival
Dear R-helpers,
We marked 6000 leaves from 5 SPECIES - 10 individuals/species - in two
different TREATMENTs: a control and a dry-plot from which 50% of
incoming precipitation was excluded. We followed those leaves for 42
months and noted the presence and absence at each visit. I then carried
out a Cox Harzard model to see differences in leaf mortality between
parcels and among species over time:
2005 Feb 15
0
[LLVMdev] Entry block (Randomisation)
Hello,
In an attempt to randomise the basic blocks in a function, is it possible that I can randomise the entry block as well? And maybe insert some instructions in the pass to call entry block while running the program ?
Is it feasible?
What does entry block consist of ?
Thanks
Tanu
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2010 Jul 28
1
randomisation for matrix
Hi to all,
I am looking for a randomisation procedure for a single matrix,
including a possibility to set the number of randomisations and the to
set the number of row and columns .
Knut
2011 Apr 07
1
Randomisation tests
Hi,
I want to ue a randomisation test, to compare two sample means, for a
small set of data, I've looked at towt.permutation, perm.test and
permtest, as well as permTS(), which is the best one to use for such a
simple purpose? I know perm.test package isn't used anymore and coins
recommended, but reading the manual I couldnt find the function most
like it, ore more likely I
2009 Apr 08
1
Genstat into R - Randomisation test
Hello everybody,
I have a question. I would like to get a correlation between
constitutive and induced plant defence which I messured on 30 plant
species. So I have table with Species, Induced defence (ID), and
constitutive defence (CD). Since Induced and constitutive defence are
not independant (so called spurious correlation) I should do a
randomisation test. I have a syntax of my
2005 Feb 09
6
randomisation
Dear useRs
I am looking for a way to randomise the values within a matrix:
the conditions are that the sums of the rows and the sums of the columns should
remain the same as in the original matrix.
Any help would be appreciated
Cheers
Yann
2009 Jul 23
1
help with randomisation test...
Dear R-people,
I hope asking this is not too cheeky, but I do have a R Problem. I hope
that some of you like to play around with R and can help me.
Its like this. I have several plant species (A,B,C) and 10 replicates
per species. 5 plants per species are damaged, 5 not. I let a
caterpillar feed on each plant and measured the growth of the
caterpillars on control plants (CR) and on damaged
2005 Feb 15
2
[LLVMdev] Entry block (Randomisation)
Tanu Sharma wrote:
> Hello,
>
> In an attempt to randomise the basic blocks in a function, is it
> possible that I can randomise the entry block as well? And maybe insert
> some instructions in the pass to call entry block while running the
> program ?
>
> Is it feasible?
>
> What does entry block consist of ?
The entry block, by definition, is the first basic
2012 Apr 05
0
[LLVMdev] [cfe-commits] [Patch?] Fix handling of ARM homogenous aggregates
On Wednesday 04 Apr 2012 13:27:07 Tim Northover wrote:
> Putting that information in the InputArg/OutputArg and incorporating it the
> CCAssignFn interface allows a more straightforward implementation in the
> targets, in my view (for both our uses). It's also information that's
> readily available when InputArg/OutputArgs are being constructed. In your
> case:
>
>
2007 Oct 23
0
Multiple comparison tests - Homogenous subsets (i.e. for Tukey)
Dear all,
is there any possibility to generate a table of homogeneous subsets for
multiple comparison tests as in SPSS with R? I am specially interested
in Tukey's B test.
I have tried to find the answer myself and found an excellent
description here:
http://www.ppsw.rug.nl/~sda/siv/Posthoc_print.pdf (-> Tab. 2)
Together with the information here ...
2009 Dec 01
0
GLM Repeated measures test of assumptions: e.g. test for sphericity e.g. Bartletts and Levenes homogenous variances
Hello and thanks in advance
I am running a glm in R the code is as follows with residual diagnostic code
below
model4<-glm(Biomass~(Treatment+Time+Site)^2, data=bobB,
family=quasi(link="log", variance="mu"))
par(mfrow=c(2,2))
plot(model2)
to test the effect of grazing exclusion of feral horses for a Phd with
following factors:
Treatment - 3 levels which are grazed
2012 Apr 10
0
[LLVMdev] [llvm-commits] [cfe-commits] [Patch?] Fix handling of ARM homogenous aggregates
Hi Tim
> I'm not sure I follow this point. Is preserving the source language a bad
> thing for some reason I'm missing? Certainly, if it affects optimisation it
> would be.
Let's consider one example:
union {
float foo[4];
int bar[3];
};
This is definitely not a HFA. However, such a union can be represented
via several different things in LLVM IR: [4 x float], [4 x
2006 Feb 01
1
Randomised Block Design
Hi, I'm studying math, and i have to make an analysys using Randomised
Block Design. I have two factors, i know how to do this in Statistica, but
how to do this in R, i read some manuals but the only thing that i have
found was 2 factor ANOVA.
Please could someone help me, or give some usefull links ??
Krzytsztof Suwada
2012 Apr 06
0
[LLVMdev] [llvm-commits] [cfe-commits] [Patch?] Fix handling of ARM homogenous aggregates
Hi all,
I think that ABI of LLVM IR level is different from ABI on real architecture
such as ARM or x86. ABI of LLVM IR level doesn't consider about register
usage. It just describes parameters and padding information related to
alignment of parameters. As Anton mentioned, LLVM have expressed ABI
information on bitcode using front-end. If someone wants to maintain information
from high level
2012 Apr 06
2
[LLVMdev] [llvm-commits] [cfe-commits] [Patch?] Fix handling of ARM homogenous aggregates
Tim,
> Opinions, anyone? (Hint hint).
I think here stuff should be thought of from different points. While
providing source type for argument might be beneficial, it might cause
moving the code from frontend to backend. Consider e.g. passing struct
by value including crazy padding inside. The ABI might specify that
padding should be removed and struct is passed field-by-field.
Also, note that