R/write_constraints_3.R

In CARNIVAL: A CAusal Reasoning tool for Network Identification (from gene expression data) using Integer VALue programming

## This code writes the list of constraints (3) of the ILP problem for one 
## condition.
##
## Enio Gjerga, 2020

write_constraints_3 <- function(variables=variables) {
  
  constraints3 <- paste0(
    variables$variables[variables$idxEdgesUp], 
    " + ", 
    variables$variables[variables$idxEdgesDown], 
    " <= 1")
  
  return(constraints3)
  
}