Uploaded September 2013 | Updated September 2026, 51 minutes ago

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Part 3 of 3. GWAS on your Notebook: Semi-parallel Linear and Logistic Regression presented by Karolina Sikorska on September 12, 2013.

Part three explains how to convert the SNP matrix from a text file to an array-oriented binary file using the Ncdf and ff packages. Array-oriented binary files allow efficient access to blocks (columns) of SNPs by SNP, as opposed to by individual/line (rows).