Displaying 20 results from an estimated 164 matches for "bioinformatiker".
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bioinformatik
2010 Aug 27
3
predict.loess and NA/NaN values
Hi!
In a current project, I am fitting loess models to subsets of data in
order to use the loess predicitons for normalization (similar to what
is done in many microarray analyses). While working on this I ran into
a problem when I tried to predict from the loess models and the data
contained NAs or NaNs. I tracked down the problem to the fact that
predict.loess will not return a value at all
2008 Nov 05
3
Efficient way to fill a matrix
Dear R experts,
Suppose I have a data frame of three variables:
> foo <- data.frame(row=1:5, col=1:3, val=rnorm(15))
> foo
row col val
1 1 1 -1.00631642
2 2 2 0.77715344
3 3 3 0.17358793
4 4 1 -1.67226988
5 5 2 1.08218836
6 1 3 1.32961329
7 2 1 -0.51186267
8 3 2 -1.20990127
9 4 3 -0.57786899
10 5 1 0.67102887
11 1 2
2011 Apr 13
5
Clearing Console; of weeks of codes!
Dear All:
I do see I have weeks of codes in my console when I check with my arrow up
keys. I have been clearing them with Control L but it seems to clear it
clear the screen temporally. I do see the previous codes again when I open R
the next day, after quitting the session!
Q:
How do I clear this?
Thanks;
YA
--
View this message in context:
2005 Mar 29
1
strange result of acos
Hi all,
I have to calculate an expression using acos -function. A strange
result of acos appears
*1. case with error*
ss <- sin(10.74*pi/180)**2
+(cos(10.74*pi/180)*cos(10.74*pi/180)*cos(0*pi/180))
ss
acos(ss)
[1] NaN
Warning message:
NaNs produced in: acos(ss)
*2. case without error*
ss <- sin(10.7*pi/180)**2
+(cos(10.7*pi/180)*cos(10.7*pi/180)*cos(0*pi/180))
ss
acos(ss)
2007 Oct 17
2
power law fit with unknown zero
Dear R-helpers
I would like to do a fit of the form: y = a (x+c)**b, where a, b and c
are unknown.
Does anybody know how to do it?
Thanks
Thomas
2008 Apr 07
1
Width of text displayed in R
All,
I think this is pretty basic but I couldn't find the answer in any
source.
I have just built my own R for Linux (amd 64). It runs well, but R
thinks that it only has 80 characters or so of screen width. I log on
with Putty to the box and can stretch it as large as I want.
Is there a simple way to tell R to use more screen width when
displaying?
From whatami:
OS RELEASE :
2008 Apr 09
1
read table not reading lines containing single quotes
Hi,
* I am using read.table command as follow
kegg<-read.table("c:/IDs.tab",header =TRUE,quote= "'", sep="\t") *
Fragment of file is as follow:
ID Pathway
04916 Melanogenesis
04920 Adipocytokine signaling pathway
04930 Type II diabetes mellitus
04940 Type I diabetes mellitus
04950 Maturity onset diabetes of the young
05010
2008 Apr 25
3
How to overlap two density plots?
Hi,
How can I overlap two density plots?
A <- c(8,10,10,11,11,11,12,12,12,12,11,11,11,10,10,7)
B <- c(11,13,13,14,14,14,15,15,15,15,14,14,14,13,13,10)
plot(density(A))
plot(density(B))
Regards,
Emre
P.S. There's a overlap.density function in package DAAG
Is there another way to do this?
--
---
Emre ÜNAL
http://www.geocities.com/dusemre
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2008 May 28
1
Can plot() be used for multiple plots?
Greetings helpRs --
I would like to use plot() to plot two cumulative distribution curves so
that a user of the plot can compare the distributions of the two
variables. The following code draws two distributions separately, but I
cannot find the instruction necessary to add a second cumulative
distribution to the first one.
Any suggestion would be very welcome.
x1 <-
2008 Nov 25
2
invoking user-defined function
Dear list,
Can somebody tell me how to invoke user-defined functions from script
files during run-time?
Basically I have (almost) one function per script file.
I am thinking of something like
#include in C++
import in Java/Python
use in Perl
No, I don't need my functions every time R is started.
Neither I am thinking about writing building my functions into
packages.
I just
2009 Feb 20
2
change attributes of all data.frame elements
Hi,
I was wondering whether there was an easy way to change the attributes
of all elements in a data.frame (rather than looping through elements)?
Specifically, I would like to set the "dim" attributes to NULL
Thanks for any help,
Jarrod
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
2008 Apr 07
2
read.table with multiple header lines
Hello,
I have difficulties in reading in a text file with multiple (=2) header lines. My table looks like this:
id code gr grcode AA AB AC AD
time 30 40 50 60
1 1234 1 c 0 1 0 0
2 1346 1 c 0 0 0 1
3 1456 1 c 0 0 1 1
4 1893 1 c 0 0 1 1
Can someone help me out?
Thanks
Deborah
--
2019 Nov 28
2
security=domain fails after upgr. to 4.9, winbind doesn't help
Hi Rowland,
> Remove 'map untrusted to domain = Yes', it has been removed.
>
> Add 'domain logons = Yes'
>
> This gets it back to being a PDC:
thanks for the hints! I did that, but it doesn't help. I guess the
problem is not on the PDC server but on SERVER2. That's the one
that got upgraded and stopped working (even with the non-pdc config
of SERVER1).
I
2008 May 31
2
How to identify overlapped items from two list and plot them?
Hi list,
I have a question on how to identify the overlapped items from two vectors:
>x<-c(0,1,2)
>y<-c(1,2,2,3)
and plot the number of the overlapped as well as non-overlapped in a
diagram?
Thanks much,
Allen
[[alternative HTML version deleted]]
2008 Apr 28
3
data.frame indexing
Dear R Community, A simple problem (for some of you): I wish to index a
data.frame by all elements NOT in my index
E.g.:
> a<-as.data.frame(matrix(rnorm(100),nrow=10,ncol=10))
> b<-which(a$V1>0.8)
> b
[1] 1 4 6 10
> a_indexb<-a[b,]
> a_notIndexB<-a[!b,]
> nrow(a_notIndexB)
[1] 0
Indexing a on b is not a problem (a_indexb), but how can do get only the
2008 Jul 30
2
Bizarre - R crashes on merge
Hi all,
I have a large data.frame, 1530 observation with 6 columns. I want to
merge a 7th column, a transformation of the response variable (hospital
admissions), namely
trans<-sqrt(copd$admissions+0.25)
trans<-data.frame(trans)
And now when I do
copd2<-merge(copd,trans)
(copd being my original data.frame), R either crashes or is taking an
extremely long time to do the computation. I
2008 May 09
1
data management question
Hi all,
I have a data management question. I am using an panel dataset read into
R as a dataframe, call it "ex". The variables in "ex" are: id year x
id: a character string which identifies the unit
year: identifies the time period
x: the variable of interest (which might contain NAs).
Here is an example:
> id <- rep(c("A","B","C"),2)
2019 Nov 28
2
security=domain fails after upgr. to 4.9, winbind doesn't help
Rowland penny via samba wrote:
> So your server doesn't seem to be able to find winbindd, are you sure it
> is running ?
>
> What does this show:
>
> ps ax | grep '[w]inbind'
>
> What OS is this ?
It's SuSE Linux Enterprise 15sp1. winbindd is definitely running, I showed
that in the first mail in the output of "rcwinbind status", there you can
2008 Apr 14
3
how to add different type of lines (short dash, long dash) into current plot)
Dear
I try to add three different lines (solid, short dash, long dash) in to current barplot. I saw there are types of lines ("p","b", ect). However, they are not what I request. Has nayone have this experience?
Many Thanks!
Xin
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2009 Jun 07
2
Need some help in R : value more than equals to a row.
Hallo,
I was trying some code, but couldn't make one step of the code properly.
Can anybody please help me?
I have one matrix like this
> values
[,1] [,2] [,3] [,4] [,5]
[1,] 0.7777778 0.36111111 0.22222222 0.1388889 0.0000000
[2,] 1.0000000 0.00000000 0.53846154 0.0000000 0.5384615
[3,] 0.5200000 0.48000000 0.64000000 0.0000000 0.8800000
[4,] 0.8928571