mr {epigraphdb}

Return information related to Mendelian Randomisation

Description

GET /mr

Usage

mr(
  exposure_trait = NULL,
  outcome_trait = NULL,
  pval_threshold = 1e-05,
  mode = c("table", "raw")
)

Arguments

exposure_trait

A trait name, e.g. "Body mass index", leaving exposure_trait as NULL will return MR information related to a specific outcome. NOTE: exposure_trait and outcome_trait cannot be both NULL.

outcome_trait

A trait name, e.g. "Coronary heart disease", leaving outcome_trait as NULL will return MR information related to a specific exposure_trait. NOTE: exposure_trait and outcome_trait cannot be both NULL.

pval_threshold

P-value threshold

mode

If mode = "table", returns a data frame (a tibble as per tidyverse convention). If mode = "raw", returns a raw response from EpiGraphDB API with minimal parsing done by httr.

Value

Data from GET /mr

Examples

# Returns a data frame
## Not run: 
mr(exposure_trait = "Body mass index", outcome_trait = "Coronary heart disease")

## End(Not run)

# Returns raw response
## Not run: 
mr(
  exposure_trait = "Body mass index", outcome_trait = "Coronary heart disease",
  mode = "raw"
) %>% str()

## End(Not run)

# Use a different threshold
## Not run: 
mr(exposure_trait = "Body mass index", pval_threshold = 1e-8)

## End(Not run)