User: hauken_heyken
hauken_heyken • 40
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Posts by hauken_heyken
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... Ok, will answer this one my self.
I found a sufficient answer, which uses S4Vectors math operators.
A very fast way to find which frame a read hit is on in a big RleList:
This example finds the frame of the read in all ORFs with only 1 hit.
cov # the Rle
sum(runLength(cov)[(cumsum(runValue(co ...
written 5 months ago by
hauken_heyken • 40
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... I have a list of 4.5 million orfs, so I need a fast method for this.
Right now the function uses 0.1 terabyte of RAM per core, which I think is way too much. (2 terabyte server)
So I can only run 20 processes at a time.
Here is the problem:
First I get the coverage of ribo-seq per ORF.
Let ...
written 6 months ago by
hauken_heyken • 40
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... Thanks for the help Martin, slowly learning the way of R.
I renamed the function to reduce_keep_attr
It tries to keep the meta columns and naming if it makes sense after reduction.
...
written 7 months ago by
hauken_heyken • 40
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... Ok, so I want my own definition of reduce, that calls GenomicRanges::reduce() if keep.names = F, the extra argument I want.
I can not find the original setGeneric for reduce, I guess it's auto-created ?
my generic is:
setGeneric("reduce", function(x, ...) standardGeneric("reduce")) # i extend wi ...
written 7 months ago by
hauken_heyken • 40
• updated 7 months ago by
Martin Morgan ♦♦ 22k
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... This will work for everyone on both servers and local, as long as you can install local user files.
1: Go to biocinstaller page, and download the .tar file:
https://bioconductor.org/packages/release/bioc/html/BiocInstaller.html
2. in R, create a new session and do:
remove.packages("BiocInstalle ...
written 8 months ago by
hauken_heyken • 40
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... In more simple terms, what I am saying is:
How do you allow negative widths on IRanges ?
...
written 10 months ago by
hauken_heyken • 40
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... Hey, I have the circular Ecoli genome, and I want to construct a GRanges object of all ORFs in the fasta file from ncbi.
I made a c++ function to do it, but of course since some of the orfs that starts just before the stop of the genome, and ends after the start, will make IRanges() constructor ...
written 10 months ago by
hauken_heyken • 40
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... CORRECTION!!:
This is the way to do it safely
Function GRanges("GRanges", Environment::namespace_env("GenomicRanges"));
You can not do:
Environment envGenomicRanges("package:GenomicRanges");
Because it will screw up the namespace if used in packages.
...
written 11 months ago by
hauken_heyken • 40
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... Ah, okey, now it makes sence. Then this will work:
New version is:
library(data.table)
b=c(1,2,3,4,5,8,10)
c=c(1,2,3,4,6,7,10)
e=c(1,2,10,5,12,15,10)
d = as.data.table(cbind(b,c,e))
indexesToRemove = lapply(1:ncol(d),function(x) ifelse(d[,as.integer(x), with = F] >= 5,as.integer(x), NA )) ...
written 11 months ago by
hauken_heyken • 40
0
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... I dont know if I understand your question correctly, but this will work, if you want to only keep columns with rows >= 5:
library(data.table)
a = c(1,2,3,4,5)
b = c(4,5,6,7,8)
c = c(6,7,8,9,10)
e = c(1,2,3,4,4) # <--- This column will be filtered out, because non is >= 5
d = as.data ...
written 11 months ago by
hauken_heyken • 40
Latest awards to hauken_heyken
Scholar
13 months ago,
created an answer that has been accepted.
For A: Subsetting Rle with ORF-sequence-positions by the 3 frames
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