Displaying 4 results from an estimated 4 matches for "acgt".
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acct
2004 Dec 29
6
numeric(0)
Dear all,
I am trying to calculate a score for a string sequence consisting of
the following four letters: ACGT.
I have got a matrix giving the scores for each pair of letters.
So for example the string ACCT has got the pairs: AC, CC and CT.
The matrix has got the following form:
names<-c("A","C","G","T");
mscore<-matrix(0,4,4);
rownames(mscore)<-names;
colna...
2009 Apr 08
1
Colour each letter of a text string in a plot
...into a plot, and hope to colourize each
of the four nucleotide of the DNA sequence with a unique colour i.e.,
A ("red"), C ("green"), G ("blue", and T ("yellow"). I use the
following codes, but the DNA sequence only shows as "red"
DNA <- "ACGT"
plot(1, xlim = c(0,1), ylim = c(0,1), axes=F, xlab="", ylab="",
main="", xaxs="i", yaxs="i")
text(x=0.5, y=0.5, labels=DNA, col=c("red", "green", "blue", "yellow"))
2010 Jul 19
3
"ACCTGMX" to "1223400" in R?
Hi,
I am a newbie in R and was working on some DNA data represented as strings
of A,C,T and G (also wild-character like M and X). I use the Bioconductor
package in R. Currently I need to convert a string of the form "ACCTGMX" to
"1223400" i.e. A is replaced by 1, C with 2, T with 3, G with 4 and any
other character with a 0. I checked with 'replace' and also with a
2007 Jan 28
2
reposTools
Dear List,
I tested the example in the reposTools vignette:
library(reposTools);
Loading required package: tools
genRepos("Test
Repository", "http://biowww.dfci.harvard.edu/~jgentry/","newRepos");
Error in rep.int(colnames(x), nr) : unimplemented type 'NULL' in 'rep'
Could someone help me out with this one?
I'd appreciate all help....
I am