This function returns the number of unique entities in a GWAS Catalog object.

n(x, unique = FALSE)

# S4 method for studies
n(x, unique = FALSE)

# S4 method for associations
n(x, unique = FALSE)

# S4 method for variants
n(x, unique = FALSE)

# S4 method for traits
n(x, unique = FALSE)

Arguments

x

A studies, an associations, a variants, or a traits object.

unique

Whether to count only unique entries (TRUE) or not (FALSE).

Value

An integer scalar.

Examples

# Determine number of studies n(studies_ex01)
#> [1] 2
# Determine number of associations n(associations_ex01)
#> [1] 4
# Determine number of variants n(variants_ex01)
#> [1] 3
# Determine number of traits n(traits_ex01)
#> [1] 3