R/get.type.q

In lpSolveAPI: R Interface to 'lp_solve' Version 5.5.2.0

get.type <- function(lprec, columns = 1:n, as.char = TRUE)
{
  n <- dim(lprec)[2]

  if(n < 1)
    columns <- integer(0)

  ind <- .Call(RlpSolve_is_int, lprec, as.integer(columns))

  if(as.char) {
    types <- rep("real", length(columns))
    types[ind] <- "integer"
  }

  else
    types <- ind

  types
}