Umap

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Rachel Rosenthal

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Jan 19, 2021, 10:30:47 AM1/19/21
to Ubismap
Hello,

I was wondering if you had any experience trying to apply Umap to a transcriptome, or if this is even necessary. Would the same default Umap bed files be suitable to determine mappability of RNAseq reads?

Thanks,

Rachel

Mehran Karimzadeh

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Jan 20, 2021, 6:41:42 AM1/20/21
to Rachel Rosenthal, Ubismap
Hi Rachel,

Thank you for your interest in Umap.
I haven't applied Umap to transcriptome data.
From my experience, different software take different approaches and there is a strong literature comparing the available tools.
This includes the algorithm for alignment itself as well as how to include multi-mapping reads in gene expression quantification.

We discuss these briefly in the manuscript which you can take a look.

Best,
Mehran


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Rachel Rosenthal

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Feb 26, 2021, 11:41:54 AM2/26/21
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Hi Mehran,

I had a quick question about the "Convert numeric vectors to BED and Wiggle" step. 

I have run the uint8_to_bed.py script, specifying:

<MergedKmerDir> 
<OutDir> 
<LabelForOutputFiles>

But get an error:

KeyError: 'SGE_TASK_ID'

Does this also have to be submitted as an array job, and if so, would it be similar in format to how "combine_umaps.py" was submitted in the previous step?

e.g.
JOBID=$(qsub -q byslot.q -N ToBED -terse -t 1-188813 -cwd -v PATH -b y -o out.LOG -e out.ERR uint8_to_bed.py kmerDir outDir Label -bed -chrsize_path chrsize.tsv -var_id SGE_TASK_ID)

Thanks,

Rachel
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