This function provides a simple method to normalize a vector

 TO USE THIS
 Pass in a vector
 Result will be the vector of min_max_normalization
 #
 Example:
  
 Usage: min_max_normal(data)
 Example: mmnorm = min_max_normal(iris$Sepal.length)

http://blogs.fiveelementanalytics.com/RCode/min_max_normalization.R