How to Scale Variable(s) to Center Within Variable

Standardizing within variable means scaling each column of the raw data so that it has a mean of 0 and a standard deviation of 1. This article describes how to go from the data below:

For each column/variable in the data, centering within variable will subtract the mean for the column from each entry in the column to yield the following:

This transformation creates for each selected variable set, a new R variable set containing the transformed data after centering within each variable.

Requirements

• A Displayr document that contains one or more Nominal - Multi, Ordinal - Multi, Numeric - Multi, Numeric - Grid, Nominal, Ordinal or Numeric variable sets.

Method

This transformation creates for each selected variable set, a new variable set containing the transformed data after centering within the variable. To standardize a variable:

1. Select the variable or variable sets in the Data Sources tree.
2. Click + > Numeric Transformations > Scale > Center Within Variable.
3. A new numeric variable is created. Centering data means that the average of a variable is subtracted from the data.

Next

Scale Variable(s) to Center Within Case