Added basic colon function

R/colon.R

@@ -0,0 +1,12 @@
+#' @title Vector creation
+#' @description Simulates the function `colon()` and its equivalent `:` operator from Matlab, which have a similar but not quite equivalent behavior when compared to `seq()` and `:` in R.
+#' @param a initial number
+#' @param b final number
+#' @export
+colon <- function(a, b) {
+    if (a <= b) {
+        return(a:b)
+    } else {
+        return(vector(mode = "numeric"))
+    }
+}