Displaying 20 results from an estimated 120 matches similar to: "genotypes simulation"
2006 Dec 29
1
Genotypes are not all the same
I have been merrily using the genetics package and more specifically have
been using the makeGenotypes and genotypes function. I check my
accomplishments by going
> class(g2)
[1] "genotype" "factor"
and likewise
> class(g1)
[1] "genotype" "factor"
Yet when I execute a command such as allele count I get this
> allele.count(g1)
D I
[1,]
2010 May 20
1
Geneland error on unix: Error in MCMC(........ :, unused argument(s) (ploidy = 2, genotypes = geno)
I am receiving the above error ( full r session output below) the
script runs OK in windows. and "genotypes" and "ploidy" are both
correct arguments
any suggestions would be most welcome
Nevil Amos
MERG/ACB
Monash University School of Biological Sciences
> library(Geneland)
Loading required package: RandomFields
Loading required package: fields
Loading required
2011 Jul 14
2
R package: pbatR
Dear All,
Does anybody have experience with R package pbatR
(http://cran.r-project.org/web/packages/pbatR/index.html)? I am trying to
use it to analyze the family-based case-control data, but the package
totally doesn?t work on my computer. I contacted the authors of the package,
but I haven?t heard anything from them.
Following the package manual, I tried the simple example as below:
2006 Dec 31
1
Genotype importing from Sequenom
Sequenom has an odd format of calling a SNP genotype
gg
[1] "C" "GA" "A" "C" "C" "AG" "C" "C" "T" "G"
homozygous A is called A and heterozygous is called AT
The genetics package cannot handle the fact that some genotypes are declared
with 2 letter while other are declared with only 1.
2005 Jun 21
3
R-help
Background:
OS: Linux Mandrake 10.1
release: R 2.0.0
editor: GNU Emacs 21.3.2
front-end: ESS 5.2.3
---------------------------------
Colleagues
Is there a function in R that is an equivalent of zoom in matlab? This is
very useful for being able to magnify details in a plot.
I have searched the help for "zoom", "interactive zooming", and "magnify".
The R search
2008 Mar 26
0
genotype analysis
Dear mailing list,
I'm still quite a newbie in the statistical analysis of
genotype/allele data, resp. more generally in the analysis of
categorical variables. Moreover, I'm currently totally confused by the
many R packages available to do such analysis.
Here is my case: I've got a list of genes, and a number of
case-control population pairs, and for each population and gene, the
2009 Apr 14
4
Building GUI for custom R application
HI R users,
I would appreciate information/examples/suggestions on building GUIs
for R applications.
I am currently working on a project that would require the following
functionalities :
1) Display a window to the user. Provide a function to scan local
drive and choose dataset file.
2) Display the column names for the user to choose the dependent
variable and the independent variables.
3) Fit
2007 Aug 02
0
Package portability issues
We have some new Solaris boxes (both Sparc and amd64), and as they are not
yet in production use I borrowed some time on them to run tests over CRAN
packages, using the Solaris make and Sun Studio compilers. The results
were quite depressing. Sun Studio 12 compilers are also available for
Linux, and there the problems are worse (for C++ code).
Line endings
============
We checked in R CMD
2009 Apr 20
1
generic genotype calling algorithm?
Hi,
I have Agilent and Illumina SNP data. That's the only thing I know about the
files - there seem to be no version specification in any of them.
Is there a generic genotype calling algorithm that I could try to use on
these datasets?
thanks,
N.
--
View this message in context: http://www.nabble.com/generic-genotype-calling-algorithm--tp23141124p23141124.html
Sent from the R help
2007 Jul 17
1
R and Genotyping
I use dChip and Affymetrix gtype to apply some genotyping functions to some microarrays data.
Do you know if similar R functions exist?
Thank you!
Francesco
-----------------------------------------------------------
Francesco Falciano, Ph.D.
CINECA
(High Performance Systems)
via Magnanelli, 6/3
40033 Casalecchio di Reno (BO)-ITALY
tel: +39-051-6171724
fax: +39-051-6132198
e-mail:
2011 Oct 08
1
HWEBayes, swapping the homozygotes genotype frequencies
I evaluated the Bayes factor in the k=2 allele case with a "triangular"
prior under the null as in the example in the help file:
HWETriangBF2(nvec=c(88,10,2))
[1] 0.4580336
When I swap the n11 entry and n22 entry of nvec, I received totally
different Bayes factor:
>
> HWETriangBF2(nvec=c(2,10,88))
[1] 5.710153
>
In my understanding, defining the genotype frequency as
2011 Apr 20
1
avoiding if-then statements for looped chi-square tests
Hi,
I am trying to test for pairwise associations between genotypes (
Rows=individuals, Columns =genes, data are up to 4 genotypes per gene, some
with 2,3 or 4) where each chisquare comparison is different depending on the
genes tested. The test is the observed multilocus (across columns for each
individual) genotypes vs the expectation, which is the product of the
individual frequency for each
2009 Jan 13
3
problem whit Geneland
I do the these passages:
library(Geneland)
set.seed(1)
data <- simdata(nindiv=200,
coord.lim=c(0,1,0,1) ,
number.nuclei=5 ,
allele.numbers=rep(10,20),
IBD=FALSE,
npop=2,
give.tess.grid=FALSE)
geno <- data$genotypes
coord <- t(data$coord.indiv)
path.mcmc <-
2011 Mar 08
1
NaNs in Nested Mixed Model
Dear R users,
I have a problem with something called "NaNs" in a nested mixed model.
The background is that I have studied the number of insect nymphs
emerging from replicated Willow genotypes in the field. I have 15
replicates each of 4 Willow genotypes belonging two 2 Willow species.
Now I want to elucidate the effect of Willow genotype on the number of
emerging nymphs. Previously I
2007 Apr 23
1
Dominance in qtl model
Hi,
I'm using R for a QTL analysis of SNP data. I was wondering if anyone
had any advice on fitting a dominance effect into the following
function;
> myfun4
function (x) {
x <- scan(con, nmax=169)
y <- unique(x[which(!is.na(x))])
if(length(y)>1) {
summary(lme(Ad ~ x, random= ~1|sire, na.action="na.omit"))
}
else {print("no.infomation")}
}
Con is the
2011 Jun 30
1
Analysing insecticide biossays using lmer
Hi all,
Here is my problem: I performed bioassays using a unique insecticide on 9
different genotypes and got their mortality depending on the dose of
insecticide used.
Now, I want to see wether some genotypes are different or not in their
responses to insecticide.
My problem is that I have up to four replicates for some genotypes, but only
one for other... Due to this unbalanced design, I
2006 Jun 20
2
multi-dimension array of raw
I would like to store and manipulate large sets of marker genotypes
compactly using "raw" data arrays. This works fine for vectors or
matrices, but I run into the error shown in the example below as soon
as I try to use 3 dimensional arrays (eg. animal x marker x allele).
> a <- array(as.raw(1:6),c(2,3))
> a
[,1] [,2] [,3]
[1,] 01 03 05
[2,] 02 04 06
>
2013 Nov 08
1
SNPRelate: Plink conversion
Hi,
Following my earlier posts about having problems performing a PCA, I have
worked out what the problem is. The problem lies within the PLINK to gds
conversion.
It seems as though the SNPs are imported as "samples" and in turn, the
samples are recognised as SNPs:
>snpsgdsSummary("chr2L")
Some values of snp.position are invalid (should be > 0)!
Some values of
2018 May 30
4
par(mfrow=c(3,4)) problem
Hi all;
I need to put 12 different plot2 into the same matrix. So my array for the
matrix will be par(mfrow=c(3,4)). I am running ggplot2 to produce my 12
plots. For some reason, par(mfrow=c(3,4)) did not turn out 3*4 matrix.
my basic R codes for each plot is
par(mfrow=c(3,4))
library(ggplot2)
p <- ggplot(a, aes(x=Genotypes, y=Plant_hight, size=Plant_hight,
color=Showing_rate)) +
.
.
Best
2010 Mar 05
1
Error in inherits(x, "data.frame") : subscript out of bounds
Hi,
I have a list p with different size dataframes and length of over
8000. I'm trying to
calculate correlations between the rows of dataframes of this list and
columns of another
dataset (type data.frame also) so that first column is correlated with
all the rows in
the list dataframe. Some information from another dataset is also
included to the final
output (all.corrs). This worked a