Category » Affymetrix Support

There were 5 articles found in this category:

1. Tutorial: How to Visualize Copy Number Analysis Segments and LogRs in Affymetrix’s GTC Browser
   Affymetrix provides a robust genome browser with its Genotyping Console software that enables you to visualize log2 ratios (referred to as LogRs) and copy number variations (CNVs) for each sample in your dataset. This tutorial will lead you step-by-step through exporting CNV segments and LogRs ...
2. Importing Affymetrix 5.0 and 6.0 marker maps (annotation files) for Copy Number Analysis
   Affymetrix 5.0 and 6.0 annotation files come in two separate files, one containing SNP probes and the other copy number probes. In order to properly process and analyze 5.0 and 6.0 data for copy number analysis you need the set merged and imported into HelixTree. HelixTree makes this easy usin ...
3. Affymetrix Library Files
   For mapping arrays prior to to the SNP 5.0 and SNP 6.0 arrays, you must have the corresponding library file installed for each type of mapping array you want to import. SNP 5.0 and 6.0 mapping arrays do not require library files. If you have GCOS installed, it is likely the library files are al ...
4. Importing Genetic Marker Maps using Affymetrix NetAffx
   Affymetrix NetAffx provides array design and annotation information for its GeneChip array results. Through its website http://www.affymetrix.com you can sign up for and use the NetAffx Analysis Center. HelixTree is able to communicate with NetAffx through a web service interface allowing the ...
5. Message error importing UCSC Wiggle Format - segment spans distance greater than 10,000,000 base pairs
   <File 'try31807_30004_Xba.brlmm.cn.wig' - track load error: Limit of 10,000,000 length specification for bed format at line 1, found: 69250877> This error message is a result of certain restrictions that UCSC has for its online genome browser. This particular restriction requires that no ...