User: Eric Wang

gravatar for Eric Wang
Eric Wang30
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

<prev • 26 results • page 1 of 3 • next >
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About germline mutation database
... 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 ...
mutation snp germline written 13 days ago by Eric Wang30
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About SVD errors of big matrix
... 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 ...
R memory svd written 6 weeks ago by Eric Wang30
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About the missing values in the feature matrix
... 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 ...
matrix classification snp missing value written 11 weeks ago by Eric Wang30 • updated 11 weeks ago by Mensur Dlakic6.8k
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How to find genomic coordinates of the HumVar and HumDiv datasets
... 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. ...
substitution protein snp sequencing written 12 weeks ago by Eric Wang30
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Comment: C: About the databases or computing tools of SNP features
... SVM,random forest? missense mutation, homo sapiens, coding. Thx ...
written 4 months ago by Eric Wang30
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About the databases or computing tools of SNP features
... 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 ...
feature snp written 4 months ago by Eric Wang30
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Comment: C: BLAST Database error: No alias or index file found for protein database [nr] in
... 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 Wang30
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Comment: C: BLAST Database error: No alias or index file found for protein database [nr] in
... 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 Wang30
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BLAST Database error: No alias or index file found for protein database [nr] in search path [D:\Test_Experiment;D:\Data\NCBI\db;]
... 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 ...
ncbi pssm psi-blast snp written 4 months ago by Eric Wang30 • updated 4 months ago by genomax90k
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(Closed) About complex of protein structure
... I'm curious about the difference between Alpha Complex and Rips Complex? Can anyone help me understand? ...
3d complex protein written 5 months ago by Eric Wang30

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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