add_metadata: Add meta data to extracted data

In MRCIEU/TwoSampleMR: Two Sample MR Functions and Interface to MR Base Database

Add meta data to extracted data

Description

Previously the meta data was returned alongside association information. This is mostly unnecessary as it is needlessly repeating information. This is a convenience function that reinstates that information. Can be applied to either exposure data, outcome data, or harmonised data

Usage

add_metadata(dat, cols = c("sample_size", "ncase", "ncontrol", "unit", "sd"))

Arguments

dat	Either exposure data, outcome data or harmonised data
cols	Which metadata fields to add. Default = c("sample_size", "ncase", "ncontrol", "unit", "sd")

Value

Data frame

MRCIEU/TwoSampleMR documentation built on Sept. 28, 2024, 6:51 p.m.