User: Axel Klenk

gravatar for Axel Klenk
Axel Klenk940
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940
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Switzerland
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4 days, 10 hours ago
Joined:
10 years, 10 months ago
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a*********@idorsia.com

Posts by Axel Klenk

<prev • 126 results • page 1 of 13 • next >
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Answer: A: phyloseq package installation problem in RStudio
... This is not about 'phyloseq' but about package 'boot' that comes with R and, depending on your installation, may require admin permissions to update. Try running R with 'sudo' or 'as admin' or whatever necessary on your OS; you should be able to update package 'boot' and the message should disappe ...
written 4 months ago by Axel Klenk940
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Answer: A: genes repeated in the heatmap several times(10x) when using limma
... Wild guess (as you don't say where your data come from): some Agilent microarrays contain 10 copies of a subset of their oligos. ...
written 12 months ago by Axel Klenk940
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Comment: C: DESeq2 I installed from latest Bionconductor version is still old version
... The first link points to a mirror (or rather: archive) of BioC release 3.0 -- with two releases per year, this is now more than three years old. Note that the current version is really 1.20 (twenty!) and not 1.2.0 and hence a lot newer than 1.4 or 1.6. If you check the PDF from your second link you ...
written 15 months ago by Axel Klenk940
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Answer: A: DESeq2 I installed from latest Bionconductor version is still old version
... There is nothing to fix. In the Bioconductor release version 3.7 DESeq2 is in fact at version 1.20.0: https://bioconductor.org/packages/release/bioc/html/DESeq2.html so that's correct.  The current devel version (to be released with BioC 3.8 in fall) is at 1.21.10: https://bioconductor.org/packa ...
written 15 months ago by Axel Klenk940
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Comment: C: Installation path not writable
... This message is about updating packages 'foreign' and 'survival', not 'pathview' or other BioC packages. These two packages come with the R installation and you need to run R as an administrator in order to update them. If there are no other complaints by biocLite() -- have you tried loading 'pathv ...
written 15 months ago by Axel Klenk940
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Comment: C: getGEO function doesn't download the expression data
... I can reproduce this behaviour when I have pkg rlang attached and can see it in your sessionInfo() as well. rlang masks exprs(). The easiest way to get around this problem is to use > str(Biobase::exprs(gse[[1]])) Does that work for you?   ...
written 16 months ago by Axel Klenk940
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Answer: A: getGEO function doesn't download the expression data
... See the Value: section of ?getGEO : it returns a list of ExpressionSet objects, not an ExpressionSet object. Hence, you want: > str(exprs(gse[[1]])) Hope this helps.   ...
written 16 months ago by Axel Klenk940
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Answer: A: How do I stop DESeq2 from loading and additional errors related to the package.
... (Hmmm... not sure what happened to my previous answer. Anyway:) No, DESeq2 is not normally loaded on R startup. I think this could be an issue with your RStudio project or R may restore a previously saved worksapce on startup that contains a DESeq2 object. The latter can be avoided by starting R li ...
written 16 months ago by Axel Klenk940
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Answer: A: Why some packages don't work?
... Apparently the installation failed. What is the output from your biocLite("affydata") ?   ...
written 16 months ago by Axel Klenk940
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Comment: C: Possible ways to select differential expressed genes using DeSeq2 or edgeR
... Good. 1) I cannot tell only form the PCA plot. 2) Have a look at Bioc pkg sva. Try finding surrogate variables in your data (see the vignette). If you find one that you're confident is a batch effect, you can try removing it using sva or combat (same pkg). Or, in case you want to use limma for dif ...
written 16 months ago by Axel Klenk940

Latest awards to Axel Klenk

Popular Question 13 months ago, created a question with more than 1,000 views. For Download problem with GEOquery::getGEO()
Scholar 17 months ago, created an answer that has been accepted. For A: Identification of DEGs through limma analysis
Teacher 2.4 years ago, created an answer with at least 3 up-votes. For A: Limma un moderated t-test
Scholar 2.4 years ago, created an answer that has been accepted. For A: Identification of DEGs through limma analysis
Centurion 2.4 years ago, created 100 posts.
Scholar 2.4 years ago, created an answer that has been accepted. For A: Limma un moderated t-test
Scholar 3.6 years ago, created an answer that has been accepted. For A: Limma un moderated t-test
Supporter 3.7 years ago, voted at least 25 times.
Teacher 4.8 years ago, created an answer with at least 3 up-votes. For A: basic R question: concatenate two numeric vectors grouped by element index

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