Displaying 20 results from an estimated 300 matches similar to: "ANOVA stuffs_How to save each result from FOR command?"
2010 Oct 20
1
Please help: ANOVA with SS Type III for unequal sample sized data
Dear R experts,
I'm beginner.
My question about ANOVA for unequal sample sized data should be obsolete but
I can not clarify it.
I have a dataset from 23 males and 18 females.
I measured one condition('cond') with 4 levels.
So I'd like to see main effect of gender, cond and gender by cond
interaction and also postHoc test. (In fact, I have to do anova 90 times)
*
1. Question
2018 May 22
3
[PATCH net] vhost: synchronize IOTLB message with dev cleanup
DaeRyong Jeong reports a race between vhost_dev_cleanup() and
vhost_process_iotlb_msg():
Thread interleaving:
CPU0 (vhost_process_iotlb_msg) CPU1 (vhost_dev_cleanup)
(In the case of both VHOST_IOTLB_UPDATE and
VHOST_IOTLB_INVALIDATE)
===== =====
vhost_umem_clean(dev->iotlb);
if (!dev->iotlb) {
ret = -EFAULT;
break;
}
dev->iotlb = NULL;
The reason is
2018 May 21
2
KASAN: use-after-free Read in vhost_chr_write_iter
On Mon, May 21, 2018 at 10:38:10AM +0800, Jason Wang wrote:
>
>
> On 2018?05?18? 17:24, Jason Wang wrote:
> >
> >
> > On 2018?05?17? 21:45, DaeRyong Jeong wrote:
> > > We report the crash: KASAN: use-after-free Read in vhost_chr_write_iter
> > >
> > > This crash has been found in v4.17-rc1 using RaceFuzzer (a modified
> > >
2018 May 21
2
KASAN: use-after-free Read in vhost_chr_write_iter
On Mon, May 21, 2018 at 10:38:10AM +0800, Jason Wang wrote:
>
>
> On 2018?05?18? 17:24, Jason Wang wrote:
> >
> >
> > On 2018?05?17? 21:45, DaeRyong Jeong wrote:
> > > We report the crash: KASAN: use-after-free Read in vhost_chr_write_iter
> > >
> > > This crash has been found in v4.17-rc1 using RaceFuzzer (a modified
> > >
2018 May 18
3
KASAN: use-after-free Read in vhost_chr_write_iter
On 2018?05?17? 21:45, DaeRyong Jeong wrote:
> We report the crash: KASAN: use-after-free Read in vhost_chr_write_iter
>
> This crash has been found in v4.17-rc1 using RaceFuzzer (a modified
> version of Syzkaller), which we describe more at the end of this
> report. Our analysis shows that the race occurs when invoking two
> syscalls concurrently, write$vnet and
2018 May 18
3
KASAN: use-after-free Read in vhost_chr_write_iter
On 2018?05?17? 21:45, DaeRyong Jeong wrote:
> We report the crash: KASAN: use-after-free Read in vhost_chr_write_iter
>
> This crash has been found in v4.17-rc1 using RaceFuzzer (a modified
> version of Syzkaller), which we describe more at the end of this
> report. Our analysis shows that the race occurs when invoking two
> syscalls concurrently, write$vnet and
2010 Aug 31
1
ez version 2.0
The ez package was developed to aid those that are new to statistical
programming. Over the course of several years of helping colleagues
and students learn R, I observed that folks are often initially turned
off R because they have difficulty obtaining SPSS-like results quickly
(SPSS is the dominant environment in my field, psychology). ez
attempts to fill this gap, providing quick and easy
2010 Aug 31
1
ez version 2.0
The ez package was developed to aid those that are new to statistical
programming. Over the course of several years of helping colleagues
and students learn R, I observed that folks are often initially turned
off R because they have difficulty obtaining SPSS-like results quickly
(SPSS is the dominant environment in my field, psychology). ez
attempts to fill this gap, providing quick and easy
2012 Jan 31
0
Error in linearHypothesis.mlm: The error SSP matrix is apparently of deficient rank
Hi,
I have encountered this error when attempting a One-way Repeated-measure ANOVA
with my data.
I have read the "Anova in car: SSPE apparently deficient rank" thread
by I'm not sure the within-subject interaction has more degrees of freedom
than subjects in my case.
I have prepared the following testing script:
rm(list = ls())
2004 Jun 08
1
[Q] raw -> gpr in aroma package
Hi.
Is it possible to make gpr from raw?
library(aroma)
#read gpr file
gpr <- GenePixData$read("gpr123.gpr", path=aroma$dataPath)
# gpr -> raw
raw <- as.RawData(gpr)
# raw -> ma
ma <- getSignal(raw, bgSubtract=FALSE)
ma.norm <- clone(ma)
#normalization
normalizeWithinSlide(ma.norm, "s")
#ma -> raw
raw2 <- as.RawData(ma)
I want to make gpr data from
2004 May 21
1
function for running MS-DOS on R
I had downloaded the program that runs on MS-DOS.
Is it possible for MS-DOS to be run in R such as WinBugs1.4?
I wonder whether there is the R function for running MS-DOS from R such as
the 'bug.r' function to make Winbugs practicable in R.
I had heard Rterm.exe that runs on MS-DOS.
However, What I need is to run MS-DOS in R but to run R in MS-DOS.
2013 Sep 20
0
Best way to specify a mixed ANCOVA in R?
I initially posted this question to one of the StackExchange sites, and they suggested that I repost my problem here.
After using ezANOVA as my primary way of specifying mixed ANOVAs, I've hit a stumbling block when it come to adding a covariate to the model. I am using an ANCOVA in order to determine if there is a developmental trajectory in my data; namely, I need to be able to see the
2009 Nov 09
1
Getting Sphericity Tests for Within Subject Repeated Measure Anova (using "car" package)
Hello everyone,
I am trying to do within subjects repeated measures anova followed by the
test of sphericity (sample dataset below).
I am able to get either mixed model or linear model anova and TukeyHSD, but
have no luck with Repeated-Measures Assuming Sphericity or Separate
Sphericity Tests.
I am trying to follow example from "car" package, but it seems that I am not
getting something
2010 Jul 17
1
Help with Reshaping from Wide to Long
I am trying to reshape data that are in the wide format into the long format.
The design is a repeated-measures design, which combined 3 levels of shape
(circle, square, triangle) with 3 levels of color (Blue, Red, Green), for a
total of 9 variables. The wide data look like this (sorry I couldn't get
the columns to line up quite right:
Subject CircleBlue CircleRed CircleGreen SquareBlue
2012 May 17
2
MANOVA with random factor
Dear All
I would need to perform a MANOVA with both fixed (group, sex, group*sex) and
random (brood) effects. I wonder if this is at all possible and if R does that.
At the moment, I only know that I can run a classic MANOVA with R.
Thank you
David
______________________________________________
David Costantini, PhD
http://www.davidcostantini.it
NERC Postdoctoral research associate
2018 Jan 16
1
Letters group Games-Howell post hoc in R
Hello everybody,
I use the sweetpotato database included in R package:
data(sweetpotato) This dataset contains two variables: yield(continous
variable) and virus(factor variable).
Due to Levene test is significant I cannot assume homogeneity of variances
and I apply Welch test in R instead of one-way ANOVA followed by Tukey
posthoc.
Nevertheless, the problems come from when I apply posthoc
2007 Jan 09
2
posthoc tests with ANCOVA
dear all,
I want to perform a posthoc test for my ANCOVA:
a1<-aov(seeds~treatment*length)
With
summary(glht(a1, linfct = mcp(treatment = "Tukey")))
R tells me: "covariate interactions found -- please choose appropriate
contrast"
How do I build these contrasts?
Ideally, I would like to have the posthoc test for the ANCOVA including
a block-effect
2013 Dec 18
1
Fwd: Bad \usage lines question
Dear colleagues,
In checking a function I am adding to an R package, I get the following
warning pair:
...
Bad \usage lines found in documentation object 'nominal':
"\\method{print}{nominal}"(x, max.print = 10,
posthoc = "std.pearson.residuals.sign",
assoc = ifelse("univariate"
list(c("N", "alpha.X2",
2009 Mar 30
0
Kruskal-Wallis-test: Posthoc-test?
Hello.
We have some questions concerning the statistical analysis of a dataset.
We aim to compare the sample means of more than 2 independent samples; the
sample sizes are unbalanced. The requirements of normality distribution and
variance homogeneity were not met even after transforming the data. Thus we
applied a nonparametric test: the Kruskal-Wallis-test (H-Test). The null
hypothesis was
2012 May 03
1
Identifying case by groups in a data frame
Hi everyone,
I would like to identify the case by groups that is just bigger that
avg plus sd. For example, using species as group and petal.wid as my
variable in the iris data.
What's the better way to doit? creating a function?
So,the question is to identify the single element of each species that is just larger than a cut-off point (i.e. larger than mean + sd)
I made this, but I can not