Displaying 20 results from an estimated 1000 matches similar to: "Character SNP data to binary MAF data"
2009 Jan 18
1
System with manual options
Hi
I was wondering if there was a way to run system when there
is e.g. a C program which is not totally command-line driven.
That is, I have a C program which requires manual input of
options into the shell during the run. I would like to run this program from
R and as far as I have seen system() does not handle manual options (?).
Is there thus a way to use these C programs anyway through
R
2009 Jan 11
1
Makevars
Hi
I have sent a previous email "Error in dyn.load()" for which, shame on
me, I later found a partial answer.
I have been trying to look into what I exactly need to include into
Makevars and where
it needs to be located and have not found a satisfying answer yet.
Maybe the following questions
are helpful for other people as well.
Again, I am trying to include a C function tools.c into
2010 Jun 20
1
Connect to server
Hi,
I am aware that this question might be a basic one.
I did browse the help and archives but I still haven't understood
how to do the following:
I run R locally and would like to read in data from a server
for which there is a username and password. That is,
how do I open a connection to a server with a password?
Thanks,
Hadassa
--
Hadassa Brunschwig
PhD Student
Department of Statistics
2010 Mar 17
1
hexadecimal colors
Hi
I would like to produce a red shading I figured the easiest way
to do that would be to use rgb in the following way:
a <- seq(0,0.9,by=0.1)
redshade <- rgb(red=1,green=a, blue=a)
However, I don't really know how to plot things using
hexadecimal colors. I used a function which tries to
find the closest color to the rgb shades but it didn't
work very well.
Any
2009 Jan 28
2
t.test in a loop
Hi All,
I've been having a little trouble with creating a loop that will run a a
series of t.tests for inspection,
Below is the code i've tried, and some checks i've looked at.
I've used the get(paste()) idea as i was told previously that the use of the
eval should try and be avoided.
I've run a single syntax to check that my systax is correct and works
without any problems
2005 Sep 22
1
R2WinBUGS: Data loading error
Hi R-Help!
I am trying to use R2WinBUGS but I get the following error message in WinBUGS
(and there must be something wrong with my R statement as I tried it directly in
WinBUGS and it worked):
display(log)
check(C:/Documents and Settings/Daikon/Roche/pop_model.txt)
model is syntactically correct
data(C:/Documents and Settings/Daikon/Roche/data.txt)
expected key word structure
compile(7)
...(and
2013 Sep 15
1
Executing a code until a new user input aborts it (readlines?)
Hi,
I know that with readlines you can start executing a code upon user input.
What I would like to do is to have the ability to abort a code based on a
new user input. E.g. when the user hits enter the code stops running. That
is, I would periodically check for a user input and stop the code when the
correct input was entered.
Below is an example of a function which would run an endless loop
2005 Jan 23
4
survreg: fitting different location parameters
Hi R-Help!
My question: I have lifetime/failure data of machines with different
stress levels and i think an weibull/extreme value distribution would
fit this data. So I did:
model1 <- survreg(Surv(lfailure)~stress,data=steel,dist="extreme")
(where lfailure=log(failure))
Now I would like to do a likelihood ratio test to test the hypothesis
H0: location parameters of the
2006 Jul 14
2
Negative Binomial: Simulation
Hi R-Users!
I fitted a negative binomial distribution to my count data using the
function glm.nb() and obtained the calculated parameters
theta (dispersion) and mu.
I would like to simulate values from this negative binomial distribution.
Looking at the function rnbinom() I was looking at the relationship
between the two possible parametrizations of the negative binomial and found
that for this
2010 Jan 06
2
Choose variables according to index
Hi
There must have someone already posted this question but I still have not
figured how I could do this:
Say I have var.1 var.2 var.3 which are large matrices. I would like to do
the following loop:
for(i in 1:3){
# Pick var.i and do something with it
}
How can I tell R to do this?
Thanks for any comments.
Hadassa
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2010 Mar 07
1
xyplot: strip size
Hi,
I was wondering if there is a way to control
the strip size in xyplot for example using the
strip.default function. Or do I need to redraw
the strips by myself?
I would like to make
the strip slimmer and I have reduced the font
size using cex. However, I don't know how
to change the size of the strip.
Thanks for any tips.
Hadassa
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2003 Aug 13
2
adding to Trellis plots
Hello everyone
I have data grouped by subjects and i used the trellis plot to show the curve for each subject. I have another vector "a" which gives me the highest points the curves for each subjects can achieve ( the curve is exponential ). Now i want to draw a horizontal line, whose values are saved in "a", on each plot for each subject. Is there any possibility to do that?
2006 Jul 18
1
Inflated Array
Hi R-users!
I am trying to create a what I call inflated array (maybe there is
already some other name for that). It is an array that changes
dinamically its dimensions, e.g. the higher the number of third
dimensions, the more rows in the array. So for example the array could
look like the following:
, ,1
1 2 3 4
, , 2
5 6 7 8
9 10 11 12
, , 3
13 14 15 16
17 18 19 20
21 22 23 24
Has
2004 Dec 31
1
lme: Confusion about Variances
Dear R users!
I used lme to fit a mixed model with random intercept and spatial Gaussian
correlation i.e. I fitted a model of the following form:
Y = X*beta + error
and
error = U + W(t) + Z
where U is the random intercept (normally distributed), W(t) the stationary
Gaussian process and Z also a normally distributed (the residual) rv. Each of
these three random variables have a variance which
2006 Mar 19
2
tick mark intervals
Hi everyone!
This must be a common question but I have not found an answer to it in the
archives yet.
I am producing four plots with par(mfrow=c(2,2)). The x-axis is the same for
all of them but the y-axis is different.
What I would like to do is to have a different range of the y-axis and
different intervals between tick marks. BUT
I would like to have the same number of tick marks and I would
2003 Aug 07
2
function "lme"
Thanks to everyone who replied to my first problem. Here is the second one:
Is the function "lme" (Mixed Model) also in a foreign library(shouldnt, as
this is a basic statistical function)? I am trying to use lme in R and it
replies that it couldnt find the function lme...weird...
Thanks for replying!
2003 Aug 15
1
again Trellis plot
Hello everyone
I've got another question on Trellis plots. I plotted my fitted model with plot(augPred(fitted model)). According to the description of this method, one can use any optional argument which is passed down to the xyplot function for Trellis plots. Additionally to the trivial plot i would like to insert a horizontal line. I tried to do it with the argument
panel= function (...)
2024 Nov 15
1
R coding to extract allele frequencies from NCBI for ALL alleles of one SNP?
Dear All,
The following code extracts from NCBI very nice output for ONE allele of a SNP (often the allele with the second largest frequency - usually termed the minor allele). It gives an average minor allele frequency from all NCBI sources (which is what I want, except I'd like the addition of data for all the other alleles of one SNP) plus a table of minor allele frequencies from each
2002 Mar 05
1
Monotonicity correlation coefficients
Could anyone help me to find the mathematical expression to calculate the monotonicity correlation coefficient between two variables?
Thanks in advance.
Luis Rivera.
Universidad de Alcal?.
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2012 Jun 14
1
Can someone recommend a package for SNP cluster analysis of Fluidigm microarrays?
I know that there are quite a few packages out that there for cluster
analysis. The problem that I am facing is finding a package that will not
incorporate all my samples into clusters but just the samples that fit a
threshold (that I have not set yet and may need help finding the right
level) for genotyping. It should be able to "no call" samples outside the
clusters. It also needs to