Displaying 20 results from an estimated 1000 matches similar to: "Random number from density()"
2013 Jul 18
1
Bland Altman summary stats for all column combinations
Hello,
I have the following data.frame
structure(list(Study = structure(c(1L, 2L, 3L, 4L, 5L, 6L, 7L,
8L, 9L, 10L, 11L, 12L, 13L, 14L, 15L, 16L, 17L, 18L, 19L, 1L,
2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L, 12L, 13L, 14L, 15L,
16L, 17L, 18L, 19L, 1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L,
11L, 12L, 13L, 14L, 15L, 16L, 17L, 18L, 19L, 1L, 2L, 3L, 4L,
5L, 6L, 7L, 8L, 9L, 10L, 11L, 12L, 13L, 14L,
2012 Jul 06
4
differences between survival models between STATA and R
Dear Community,
I have been using two types of survival programs to analyse a data set.
The first one is an R function called aftreg. The second one an STATA
function called streg.
Both of them include the same analyisis with a weibull distribution. Yet,
results are very different.
Shouldn't the results be the same?
Kind regards,
J
--
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2017 Sep 04
1
Merge by Range in R
Hi,?
I have two big data set.?
data _1 :?
> dim(data_1)
[1] 15820 5
> head(data_1)
? ?Chromosome ?????Start????????End????????Feature GroupA_3
1: ? ? ? ????????chr1 521369 ?750000 ????chr1-0001 ? ?????0.170
2: ? ? ? ????????chr1 750001 ?800000 ????chr1-0002 ? ????-0.086
3: ? ? ? ????????chr1 800001 ?850000 ????chr1-0003 ? ?????0.006
4: ? ? ? ????????chr1 850001 ?900000 ????chr1-0004 ?
2011 Aug 10
2
Loops for repetitive task
Hello,
I have an R script that I use as a template to perform a task for multiple
files (in this case, multiple chromosomes).
What I would like to do is to utilize a simple loop to parse through each
chromosome number so that I don't have to type the same code over and over
again in the R console.
I've tried using:
for(i in 1:22){
etc..
}
and replacing each chromosome number with
2011 Oct 17
2
Histogram for each ID value
I have a dataframe in the general format:
chr1 0.5
chr1 0
chr1 0.75
chr2 0
chr2 0
chr3 1
chr3 1
chr3 0.5
chr7 0.75
chr9 1
chr9 1
chr22 0.5
chr22 0.5
where the first column is the chromosome location and the second column is
some value. What I'd like to do is have a histogram created for each chr
location (i.e. a separate histogram for chr1, chr2, chr3, chr7, chr9, and
chr22). I am just
2011 Oct 25
4
comparing two tables
Hi everybody,
I would like to know whether it is possible to compare to tables for certain
parameters.
I have these two tables:
gene table
name chr start end str accession Length
gen1 4 646752 646838 + MI0005806 86
gen12 2L 243035 243141 - MI0005821 106
gen3 2L 159838 159928 + MI0005813 90
gen7 2L
2008 Feb 06
4
inserting text lines in a dat frame
Hi Jim
I am trying to prepare a bed file to load as accustom track on the UCSC genome browser.
I have a data frame that looks like the one below.
> x
V1 V2 V3
1 chr1 11255 55
2 chr1 11320 29
3 chr1 11400 45
4 chr2 21680 35
5 chr2 21750 84
6 chr2 21820 29
7 chr2 31890 46
8 chr3 32100 29
9 chr3 52380 29
10 chr3 66450 46
I would like to insert the following 4 lines at the beginning:
2010 Nov 07
1
How do I order xyplot line points?
I have the following xyplot figure:
http://img577.imageshack.us/img577/686/filesizeresults12000000.png
The data are organized in a matrix file as follows:
Type Elements Chromosome Time
bedGz 12000000 chr1 14.240
bedGz 12000000 chr2 7.949
bedGz 12000000 chr3 5.103
bedGz 12000000 chr4 5.290
bedGz 12000000 chr5 5.161
...
The x-axis labels in the Chromosome column are ordered
2011 Jul 27
2
Writing a summary file in R
Hello,
I have an input file:
http://r.789695.n4.nabble.com/file/n3700031/testOut.txt testOut.txt
where col 1 is chromosome, column2 is start of region, column 3 is end of
region, column 4 and 5 is base position, column 6 is total reads, column 7
is methylation data, and column 8 is the strand.
I would like a summary output file such as:
2016 Apr 05
2
Is that an efficient way to find the overlapped , upstream and downstream ranges for a bunch of ranges
I do have a bunch of genes ( nearly ~50000) from the whole genome, which read in genomic ranges
A range(gene) can be seem as an observation has three columns chromosome, start and end, like that
seqnames start end width strand
gene1 chr1 1 5 5 +
gene2 chr1 10 15 6 +
gene3 chr1 12 17 6 +
gene4 chr1 20 25 6 +
gene5
2008 Feb 04
1
counting identical data in a column
Hi Peter
I have the following data frame with chromosome name, start and end positions:
chrN start end
1 chr1 11122333 11122633
2 chr1 11122333 11122633
3 chr3 11122333 11122633
8 chr3 111273334 111273634
7 chr2 12122334 12122634
4 chr1 21122377 21122677
5 chr2 33122355 33122655
6 chr2 33122355 33122655
I would like to count the positions that have the same start and
2011 Jun 08
1
return counts of elements on a table column depending on elements on another column
Hi,
I am given the following table:
> head(hsa_refseq)
chr genome region start stop nu strand nu.1 nu.2
gene_id
1 chr1 hg19_refGene CDS 67000042 67000051 0 + 0 gene_id
NM_032291
2 chr1 hg19_refGene exon 66999825 67000051 0 + . gene_id
NM_032291
3 chr1 hg19_refGene CDS 67091530 67091593 0 + 2 gene_id
NM_032291
4 chr1 hg19_refGene exon
2011 Dec 06
1
warning for inefficiently compressed datasets
Hi,
Recently added to doc/NEWS.Rd:
'R CMD check' now gives a warning rather than a note if it finds
inefficiently compressed datasets. With 'bzip2' and 'xz' compression
having been available since R 2.10.0, there is no excuse for not
using them.
Why isn't a note enough for this?
Generally speaking, warnings are for things that are dangerous,
or unsafe,
2010 Feb 18
2
3D plot
Dearl list,
can anyone point me to a function or library that can create a graph similar to the one in the following powerpoint presentation?
http://bmi.osu.edu/~khuang/IBGP705/BMI705-Lecture7.ppt
(pages 36-37)
In order to try to explain the graph, the way I see it in R terms is something like this:
the "p-q" axis is a vector of positions (for example, seq(0,5000000,1))
the
2010 Feb 10
2
How to create probeAnno object?
Hi,
I want to use segChrom() method in tilingArray package. For that I need to create a probeAnno object. I could not find much much info by ?probeAnno. I need help in creating probeAnno object.
Snap shot of the file(.txt):
chr1 2500014 2500038 + 0.232689943122845
chr1 2500039 2500063 + 2.60502410304227
chr1 2500062 2500086 + 0.0756595313279895
chr1 2500080 2500104 + 0.78574617788405
chr1
2012 Oct 16
2
sliding window analysis with rollapply
Dear List members
I want to do the sliding window analysis of some specific values. Here is my code:
require(zoo)
dat <- read.table("chr1.txt", header = TRUE, sep="\t")
dat2 <- cbind(dat[1,3]) #The first column is also important. It represents the position of the site on the chromosome.
TS <- zoo(c(dat2))
a <- rollapply(TS, width=1000000, by=200000, FUN=mean,
2012 Mar 04
1
Intersection of two chromosomal ranges
Hi,
I want to merge multiple chromosomal regions based on their common
intersecting regions. I tried couple of things using while and if loops but
did not work out.
I would appreciate if anyone could provide me a small piece of code in R to
get the intersection of following example:
chr1: 100-150
chr1: 79-250
chr1: 100-175
chr1: 300-350
I want the intersection of all four regions as follow:
2010 May 20
1
computer out of memory when using sigpathway
Dear R users,
I am sorry to disturb you! But I really need your help for the usage of sigPathwy.
Actually, I want a sliding window analysis for possible chromosome expression pattern mining. My research microorganism is a plant pathogen, Gibberella zeae, and I first used SAS to divide locus number with 10, 20, 30, or 40 on the fungal chromosome according to their location. I really
2012 Jul 22
1
Lattice/"panel.bwplot" and Gviz: Boxplot question
Hi,
I was using Gviz package to create a boxplot. I understand that Gviz uses
"panel.bwplot" to create the boxplot.
Is there any way that I can remove the dashed line surrounding each pair of
boxplots?
Here is some sample code:
#############
library(Gviz)
thisdata <- matrix(sample(1:100,60),nrow=10,ncol=6)
positions <- sample(1:100,6)
limit1 <- min(positions)-1
limit2
2008 May 15
1
Warning about undocumented data sets
Hi, List,
Sorry in advance if this turns out to be a stupid question -- I've
been trying to work it out for awhile, and I don't have any new ideas
-- I'm very new to R documentation/ LATEX.
I am running "R CMD check " on a package that I am trying to write;
the only warning is:
* checking for missing documentation entries ... WARNING
Undocumented data sets:
Einter KG
All