code: function SNV(data) {
      var mean = Stat.mean(data);
      var std = Stat.standardDeviation(data);
      var result = data.slice();
      for (var i = 0; i < data.length; i++) {
          result[i] = (result[i] - mean) / std;
      }
      return result;
  }
docs: Function that applies the standard normal variate (SNV) to an array of values.
  
  @param data - Array of values.
  @returns {Array} - applied the SNV.