save_ped_table: Save a '.ped' table to file.

View source: R/save_ped_table.R

save_ped_tableR Documentation

Save a .ped table to file.

Description

Save a .ped table to file to be used by PLINK. Most columns have a single space between them. The exceptions, where there are two spaces between the columns are:

  • between sex_code and case_control_code

  • between case_control_code and the first SNP

  • between each pair of SNPs

Usage

save_ped_table(ped_table, ped_filename)

Arguments

ped_table

a 'pedigree' table.

A ped_table is a tibble with these columns:

  • FID The family ID

  • IID Within-family ID (cannot be zero)

  • within_family_id_father Within-family ID of father (0 if father isn't in dataset)

  • within_family_id_mother Within-family ID of mother (0 if mother isn't in dataset)

  • sex_code Sex code (1 = male, 2 = female, 0 = unknown)

  • case_control_code Case control code (1 = control, 2 = case, 9/0/non-numeric = missing data if case/control)

  • snv_[x][y] Nucleotide for the xth variant for haplotype y (y is either a or b) in the .map file (0 = no call)

The FID and IID column names match the PLINK names, see https://www.cog-genomics.org/plink/1.9/input#pheno.

Use read_plink_ped_file to read a PLINK .ped file. Use check_ped_table to test if a pedigree table is valid.

ped_filename

name of a PLINK .ped file. Use read_plink_ped_file to read a PLINK .ped file.

Author(s)

Richèl J.C. Bilderbeek


richelbilderbeek/plinkr documentation built on March 25, 2024, 3:18 p.m.