User: popantrop

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popantrop30
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Posts by popantrop

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Comment: C: How does monocle identify the begging of pseudotime?
... Thank you Kristoffer -- this makes sense. I think it's a bit misleading of the authors to be speaking of the "beginning of pseudotime", which could just as well be the end of pseudotime. Yes, RNA velocity can establish precedence, as I've written at the bottom of my question. The way this is done is ...
written 4 weeks ago by popantrop30
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How does monocle identify the begging of pseudotime?
... [The following graph][1] shows an example cell trajectory analysis with monocle. I have a rough understanding of how monocle constructs the pseudotemporal ordering of cells, using independent component analysis and minimum spanning trees (MST). However, there is one bit of the larger picture, which ...
scrna-seq rna velocity cell trajectory rna-seq written 4 weeks ago by popantrop30 • updated 4 weeks ago by kristoffer.vittingseerup1.4k
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Answer: A: Annotation Of Affymetrix Human Exon St. 1.0
... Your specific problem was most likely the fact that at the "core" annotation level RMA produces a file annotated with transcription cluster IDs, and biomart only speaks probeset IDs. So using biomart you can't translate from transcription cluster IDs to gene names. I've produced a [csv file](https: ...
written 8 months ago by popantrop30
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Writing and loading expression sets to and from csv files.
... One can write an expression set into a csv file using `csv.write`. For example, using the standard [bladderbatch bioconductor package](https://bioconductor.org/packages/release/data/experiment/vignettes/bladderbatch/inst/doc/bladderbatch.pdf) the following code writes a csv file to the current worki ...
R bioconductor microarray written 14 months ago by popantrop30 • updated 14 months ago by Kevin Blighe37k
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Comment: C: Affymetrix Microarray Analysis In Python
... Actually, I've just checked and the code works also with python2 ...
written 2.2 years ago by popantrop30
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Answer: A: Affymetrix Microarray Analysis In Python
... [I have written a parser][1] in pure python 3, which can deal with Affymetrix CEL files, version 4. This version is difficult to parse, because it's binary and poorly documented. Data produced from Human Exon Chip should be compatible with this parser. If you're interested in parsing other versions ...
written 2.2 years ago by popantrop30

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