check_missingness: Check for missingness in phenotypes or covariates
Description
We use `is.finite` from base R to identify those subjects that have one or
more missing values in `input_matrix`. We then return a character vector of subjects
that have no missingness in `input_matrix`.
Usage
check_missingness(input_matrix)
Arguments
input_matrix
phenotypes or covariates matrix
Value
character vector of subjects that have no missingness