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gwas [2020/06/22 17:13]
trynke
gwas [2020/06/22 17:21]
trynke
Line 73: Line 73:
   * Unimputed: Genotypes determined on the basis of the SNP array, not imputed against genomic reference panels.   * Unimputed: Genotypes determined on the basis of the SNP array, not imputed against genomic reference panels.
  
-==== Non-Caucasian samples ====+===== Non-Caucasian samples ​=====
 To prevent false-positive association,​ non-Caucasian samples are excluded. ​ To prevent false-positive association,​ non-Caucasian samples are excluded. ​
  
Line 81: Line 81:
   * Population stratification (using Eigenstrat)   * Population stratification (using Eigenstrat)
  
-==== Cryptic relationships ==== +===== Cryptic relationships ​===== 
 Samples are selected using self reported family relations. After cleaning of the data, samples are compared with each other to determine the relationship by genetic similarity. If a pair of samples are indicated as first degree relatives, the sample with the best genotyping quality will be included. Samples are selected using self reported family relations. After cleaning of the data, samples are compared with each other to determine the relationship by genetic similarity. If a pair of samples are indicated as first degree relatives, the sample with the best genotyping quality will be included.
  
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 ===== Releasing SNP genotype data ===== ===== Releasing SNP genotype data =====
 The following files are available through the Lifelines workspace or HPC: The following files are available through the Lifelines workspace or HPC:
-files with phenotype data +  * files with phenotype data  
- +  ​* ​files with genotyped and imputed data 
-files with genotyped and imputed data +  ​* ​quality control files: 
- +      ​* ​list of samples excluded 
-quality control files: +      ​* ​list of SNPs excluded  
- -list of samples excluded +      ​* ​PCA component file                                                                                                                                                                                                                                                                                             
- -list of SNPs excluded  +
- -PCA component file                                                                                                                                                                                                                                                                                             +
  
 ===== Abbreviations ===== ===== Abbreviations =====
gwas.txt · Last modified: 2021/05/27 17:21 by trynke