exportPattern("^[[:alpha:]]+")
importFrom("stats", "cov", "dist", "kmeans", "median", "var", "quantile")
importFrom("utils", "setTxtProgressBar", "txtProgressBar")
importFrom("doSNOW", "registerDoSNOW")
importFrom("foreach", "%dopar%", "foreach")
importFrom("parallel", "detectCores", "makeCluster", "stopCluster")
