User: Eric Wang
Eric Wang • 30
- Reputation:
- 30
- Status:
- New User
- Location:
- Harbin
- Scholar ID:
- Google Scholar Page
- Last seen:
- 1 day, 20 hours ago
- Joined:
- 1 year, 11 months ago
- Email:
- r********@gmail.com
Posts by Eric Wang
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... Hi all,
I want to download some data about the germline mutation. However, the germline data of many databases (such as TCGA) are controlled. Is there any unrestricted access database related to germline? It is better to have both germline mutations and somatic mutations in each sample.
Best
Eric ...
written 13 days ago by
Eric Wang • 30
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... Hi all,
I used the SVD function to obtain the Singular values from a big matrix.
I got the errors from R as follows:
20 *** caught segfault ***
21 address 0x55724e6da770, cause 'memory not mapped'
23 Traceback:
24 1: La.svd(x, nu, nv)
25 2: svd(all, nu = svd_k)
26 An irrecoverable exception ...
written 6 weeks ago by
Eric Wang • 30
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... Hi all,
I am studying the classification problem (or prediction problem) based on a feature matrix. But I found a lot of missing values in some features (even more than 80%). I would like to ask how to add or fill in the missing values while retaining these features. At the same time, may I ask if ...
written 11 weeks ago by
Eric Wang • 30
• updated
11 weeks ago by
Mensur Dlakic • 6.8k
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... Hello all,
I am looking for the list of genomic coordinates and variants for the HumVar and HumDiv datasets.
Is there any way to obtain the DNA mutation site of HumVar？
Thx. ...
written 12 weeks ago by
Eric Wang • 30
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... SVM，random forest？ missense mutation, homo sapiens, coding. Thx ...
written 4 months ago by
Eric Wang • 30
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... Dear All,
I want to collect some features of SNP as input data of the machine learning algorithm. Do you have any database or computing tools?
Best Regards Dylan ...
written 4 months ago by
Eric Wang • 30
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... I have obtained a pssm.asn file. Do you know how to transfer it to a matrix?
For example, a 27-length protein sequence was uploaded as the input data to psi-blast server. Finally, I got the pssm.asn file.
However, I don't know how to understand the content of this file.
PssmWithParameters ::= ...
written 4 months ago by
Eric Wang • 30
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... Thank you for your answer. Is there a method to calculate the PSSM matrix in the webserver? I tried this "https://blast.ncbi.nlm.nih.gov/Blast.cgi?CMD=Web&PAGE=Proteins&PROGRAM=blastp&RUN_PSIBLAST=on" (program selection: Algorithm PSI-BLAST (Position-Specific Iterated BLAST)). However, ...
written 4 months ago by
Eric Wang • 30
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... Dear All
I have downloaded the nr database by this command wget 'ftp://ftp.ncbi.nlm.nih.gov/blast/db/FASTA/nr.gz' and have extracted the file "nr". When I run psiblast to obtain the PSSM matrix. I got this error: BLAST Database error: No alias or index file found for protein database [nr] in search ...
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... I'm curious about the difference between Alpha Complex and Rips Complex? Can anyone help me understand? ...
written 5 months ago by
Eric Wang • 30
Latest awards to Eric Wang
Popular Question
5 months ago,
created a question with more than 1,000 views.
For About TCGA CNV data preprocessing
Popular Question
15 months ago,
created a question with more than 1,000 views.
For About TCGA CNV data preprocessing
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