compute_extended_ratio_qc_flags {ukbnmr}

Aggregate QC Flags when computing the extended set of biomarker ratios

Description

For the 76 biomarker ratios computed by compute_extended_ratios(), aggregates the biomarker QC flags from the biomarkers composing each ratio (see nmr_info), which can be useful for determining the reason underlying missing values in the biomarker ratios.

Usage

compute_extended_ratio_qc_flags(x)

Arguments

x

data.frame containing NMR metabolomics data from UK Biobank. May either be raw field data output by ukbconv or data with column names corresponding to biomarkers listed in nmr_info.

Details

If your UK Biobank project only has access to a subset of biomarkers, then this function will only return the subset of ratios that can be computed from the biomarker data provided.

Biomarker QC Flags in the input data are also returned alongside those aggregated by this function for the computed biomarker ratios.

Value

a data.frame with QC flags aggregated for all computed biomarker ratios.

See Also

nmr_info for list of computed biomarker ratios and extract_biomarkers() for details on how raw data from ukbconv is processed.

Examples

ukb_data <- ukbnmr::test_data # Toy example dataset for testing package
biomarker_qc_flags <- compute_extended_ratio_qc_flags(ukb_data)