read_ukb_tabdata: Read the main dataset

In niekverw/ukbpheno: Extraction and processing UK Biobank data to generate health outcome phenotypes

Read the main dataset

Description

This function reads the dataset ukbxxxxx.tab generated using ukb utility and keep only data fields specified. Depending on the size of the dataset the process may take some time.

Usage

read_ukb_tabdata(fukb, dfhtml, fields_to_keep = default_ukb_fields())

Arguments

fukb	Path to the main dataset (.tab) file
dfhtml	dataframe containing the metadata, can be obtained by read_ukb_metadata().
fields_to_keep	the datafields to keep as a character vector, default: default_ukb_fields()

Value

main dataset as dataframe with only selected data fields

Examples

fukbtab <- paste(pheno_dir,"ukb12345.tab",sep="")
dfhtml<- read_ukb_metadata ("ukb12345.html")
dfukb <- read_ukb_tabdata(fukbtab,dfhtml,fields_to_keep = default_ukb_fields())

niekverw/ukbpheno documentation built on Oct. 30, 2023, 9:17 p.m.