How to Normalize Data

When you normalize a set of data, you map the original data range into another scale. The steps for normalizing a data set are described here.

You will need

  • Data set minimum and maximum
  • Normalize scale minimum and maximum
  • Number in the data set
  • Normalized value

Step 1 Identify the minimum and maximum values Identify the smallest and largest numbers in the original data set and represent them with the variables A and B, respectively.

Step 2 Identify the minimum and maximum values of the normalized scale Identify the smallest and largest numbers in the normalized scale and represent them by the variables lowercase a and lowercase b, respectively.

Step 3 Calculate normalized value Calculate the normalized value of any number x in the original data set using the equation a plus (x minus A) times (b minus a) divided by (B minus A).