Category Archives: How to’s and advanced workflows

Creating Annotation Tracks from 1000 Genomes Phase 1 Data

If you have ever worked with NGS variant data, you may have come to realize that the first task at hand is the seemingly simple categorization of your variants into two bins: known and novel. Of course, if you’ve ever worked with NGS variant data, you may have also come to the realization that this step is more complex than… Read more »

Sequence Analysis Methods Not Just for Sequence Data

Speaking as somebody with a long history in data analysis, there are few things I find more exciting and tantalizing than new analysis methods that might apply to a problem I am trying to solve or was unable to solve in the past.  Whenever I make a breakthrough in one project, I find I want to abandon the current project… Read more »

Marker Map Manipulation Improvements in SVS 7.5

Manipulating a marker map in SVS has never been easier, thanks to expanded functionality in SVS 7.5.  Have you ever wanted to view annotation data next to marker map data?  Or expand the current marker map with spreadsheet data to create a custom map?  SVS 7.5 features two new functions that can accomplish these tasks. Adding Annotation Data to a… Read more »

Please Help Me Get My Regression Model Set Up!

Golden Helix’ SNP & Variation Suite (SVS) has a Regression Module to enable researchers with varying degrees of statistical knowledge to interrogate their data using regression models to account for potential confounding effects of covariates and interaction terms. While these tools are labeled “basic”, they can be difficult to use and results hard to interpret for those who have only… Read more »

CNV Analysis Tips for Illumina Data

      Golden Helix    November 24, 2010    1 Comment on CNV Analysis Tips for Illumina Data

The following statement is representative of a common question that is posed to the Golden Helix support team: “I followed all of the steps in the SVS7 CNV analysis tutorial, but my results seem kinda funny. The segment means are skewed to the left and it doesn’t look like I have any copy number gains.  Can you tell me what… Read more »