User: Ar
Ar • 700
- Reputation:
- 700
- Status:
- Trusted
- Location:
- United States
- Website:
- https://www.linkedin.c...
- Twitter:
- aayushraman
- Last seen:
- 2 days, 4 hours ago
- Joined:
- 2 years, 3 months ago
- Email:
- a************@gmail.com
Posts by Ar
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... **Abstract**: We propose a data-adaptive, non-parametric, and non-regression approach to remove the biological signal to prepare the data for batch detection and then apply a semi-NMF method to obtain the estimation of the hidden batch factors associated with the samples. To isolate the batch signal ...
written 8 weeks ago by
Ar • 700
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... I am sorry but for some reason the post came up on the "Biostars Latest question". I think it was because the Biostar modified your post. However, thanks for sending the paper. I will go through it. ...
written 10 months ago by
Ar • 700
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... Here is my earlier post on Batch Correction: https://www.biostars.org/p/196430/#196528
I would recommend you to combine all the dataset you have and then get the batch information using sva function. Now sva gives you surrogate variables (which is batch plus information about other latent variables ...
written 10 months ago by
Ar • 700
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... I went through the vignette about interaction terms and would like to understand if I am applying interaction terms correctly and biologically, if I am extracting the correct the terms. Here is the example code from DESeq2 R documentation for **two conditions (A, B) and three genotypes (I,II,III)**. ...
written 11 months ago by
Ar • 700
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Answer:
A: PCA tpm fpkm
... I would recommend to do log-transformation of the TPM/RSEM dataset. PCA has a hidden assumption of normality. PCA finds the coordinate system such that it can maximize the variance between the points. This achieved using orthogonal principal components. In case of multivariate Gaussian distribution ...
written 11 months ago by
Ar • 700
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... Thanks and that was an awesome answer! Actually you made my stupid question look good! :D ...
written 11 months ago by
Ar • 700
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... Thanks a lot. That was helpful! ...
written 11 months ago by
Ar • 700
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... WouterDeCoster: Mostly in small sample size where n = 4 or 5 for each genotype (in a model organism such as mice). ...
written 11 months ago by
Ar • 700
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... In most of the brain tissues like Hypothalamus, cerebellum, straitum and dentate gyrus. Typically, people use anova rather then limma. Limma gives you around 20-30 genes where as anova gives you 100-200 genes. The transcriptomic changes are very small and most of diff expressed genes between WT and ...
written 11 months ago by
Ar • 700
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... I totally agree with Daniel's first paragraph but not second. There are many mendelian diseases (like Rett Syndrome) where the phenotype is extremely different however, the number of diff expressed genes between a WT and KO model organism is very small (~20 to 30 max with FDR < 0.05). Then I thin ...
written 11 months ago by
Ar • 700
Latest awards to Ar
Popular Question
4 days ago,
created a question with more than 1,000 views.
For Difference between the Fasta files from UCSC and Gencode/Ensembl
Popular Question
8 weeks ago,
created a question with more than 1,000 views.
For Difference between the Fasta files from UCSC and Gencode/Ensembl
Teacher
6 months ago,
created an answer with at least 3 up-votes.
For A: Public paired end chip seq dataset, both ChIP and input?
Good Answer
8 months ago,
created an answer that was upvoted at least 5 times.
For A: Beginner in Bioinformatics / computational biology field
Student
8 months ago,
asked a question with at least 3 up-votes.
For Difference between the Fasta files from UCSC and Gencode/Ensembl
Teacher
11 months ago,
created an answer with at least 3 up-votes.
For A: Public paired end chip seq dataset, both ChIP and input?
Supporter
13 months ago,
voted at least 25 times.
Appreciated
14 months ago,
created a post with more than 5 votes.
For A: Limma strange low p-values.
Good Answer
14 months ago,
created an answer that was upvoted at least 5 times.
For A: Beginner in Bioinformatics / computational biology field
Teacher
14 months ago,
created an answer with at least 3 up-votes.
For A: Public paired end chip seq dataset, both ChIP and input?
Scholar
14 months ago,
created an answer that has been accepted.
For A: Public paired end chip seq dataset, both ChIP and input?
Scholar
14 months ago,
created an answer that has been accepted.
For A: Public paired end chip seq dataset, both ChIP and input?
Teacher
14 months ago,
created an answer with at least 3 up-votes.
For A: Public paired end chip seq dataset, both ChIP and input?
Scholar
14 months ago,
created an answer that has been accepted.
For A: Public paired end chip seq dataset, both ChIP and input?
Scholar
14 months ago,
created an answer that has been accepted.
For A: Public paired end chip seq dataset, both ChIP and input?
Appreciated
14 months ago,
created a post with more than 5 votes.
For A: Limma strange low p-values.
Scholar
14 months ago,
created an answer that has been accepted.
For A: Public paired end chip seq dataset, both ChIP and input?
Teacher
14 months ago,
created an answer with at least 3 up-votes.
For A: Public paired end chip seq dataset, both ChIP and input?
Scholar
14 months ago,
created an answer that has been accepted.
For A: Public paired end chip seq dataset, both ChIP and input?
Teacher
14 months ago,
created an answer with at least 3 up-votes.
For A: Public paired end chip seq dataset, both ChIP and input?
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