FlashPCA2: principal component analysis of Biobank-scale genotype datasets.
Bioinformatics
; 33(17): 2776-2778, 2017 Sep 01.
Article
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| MEDLINE
| ID: mdl-28475694
ABSTRACT
MOTIVATION Principal component analysis (PCA) is a crucial step in quality control of genomic data and a common approach for understanding population genetic structure. With the advent of large genotyping studies involving hundreds of thousands of individuals, standard approaches are no longer feasible. However, when the full decomposition is not required, substantial computational savings can be made. RESULTS:
We present FlashPCA2, a tool that can perform partial PCA on 1 million individuals faster than competing approaches, while requiring substantially less memory. AVAILABILITY AND IMPLEMENTATION https//github.com/gabraham/flashpca . CONTACT gad.abraham@unimelb.edu.au. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Banco de datos:
MEDLINE
Asunto principal:
Programas Informáticos
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Genómica
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Análisis de Componente Principal
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Técnicas de Genotipaje
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Genética de Población
Límite:
Humans
Idioma:
En
Año:
2017
Tipo del documento:
Article