Questions tagged [bioconductor]

Bioconductor provides tools for the analysis and comprehension of high-throughput genomic data in the R language.

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Extracting expression data from GSE dataset downloaded from GEO

I have downloaded GSE16146 dataset from GEO using GEOquery R package. I would like to extract "Data table" from downloaded GSE16146. ...
panbar's user avatar
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19 votes
2 answers
10k views

Understanding DESeq2 design, contrast and results

I have a set of high-troughput experiments with 2 genotypes ("WT" and "prg1") and 3 treatments ("RT", "HS30" and "HS30RT120"), and there are 2 ...
bli's user avatar
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16 votes
3 answers
5k views

R package development: How does one automatically install Bioconductor packages upon package installation?

I have an R package on github which uses multiple Bioconductor dependencies, 'myPackage' If I include CRAN packages in the DESCRIPTION via Depends:, the packages ...
ShanZhengYang's user avatar
6 votes
2 answers
965 views

Transcript Coordinate Ranges to Genomic Coordinates

I have 2 GFF3 files: Features using transcript IDs as the landmarks. i.e. "CDS" feature types using coordinates from transcript space. Features using chromosome IDs as the landmarks. i.e. "exon" ...
Nathan S. Watson-Haigh's user avatar
4 votes
1 answer
1k views

Hierarchical models with limma?

I have a dataset with (microarray) gene expression data that was sampled from the same individuals at multiple timepoints. Our exposure is a continuous variable, and because this was an observational ...
bluemouse's user avatar
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4 votes
1 answer
253 views

How should I address batch effects in my experiment?

Let's say I have an RNA-Seq experiment, where I'm interested in the significantly differentiated genes between pre-treatment and post-treatment conditions. "rep" == biological replicate. ...
ABCD's user avatar
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3 votes
1 answer
209 views

alpha diversity wilcox.test

I am trying to do Wilcox test to detect the significant difference in alpha diversity but it is showing an error? physeqN2 is a phyloseq object and Season is a metadata column. ...
bioinfonext's user avatar
2 votes
1 answer
34 views

GEO Methylation dataset "GSE73303" shows 0 features

I'm working for a project using GEO, in order to analyze some gene expression data. The SuperSeries I am referring to is GSE73304, but I found some problems working on the SubSeries GSE73303. I ...
Riesz98's user avatar
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0 votes
3 answers
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isSpike function in SingleCellExperiment package is deprecated?

I am trying to follow a tutorial from Sanger institute (from May 2019) on analysis of single cell RNA Seq data. They use isSpike function to filter out ERCC (control) and MT (mitochondrial RNA) reads, ...
Diana at Duke's user avatar