Spotfire® User Guide

Normalization

The Normalization transformation is used to normalize the data in one or more columns of a data table.

See Transforming data for information about how to add a transformation to an analysis.



Option Description
Result option
Add columns Use this option to add new normalized columns to the resulting data table. The old columns will also be kept.
Replace selected columns Use this option to replace the old columns with the new, normalized ones.
Available columns Lists the columns available in the selected data source.
Add > Moves the columns selected in the Available columns list to the Selected columns list.
< Remove Removes the selected columns from the Selected columns list.
Remove All Removes all columns form the Selected columns list.
Move Up Moves the selected column in the Selected columns list up one step.
Move Down Moves the selected column in the Selected columns list down one step.
Selected columns Lists the columns that are selected to be normalized.
Method Specifies the normalization method to use. See Normalizing columns and the theory section for each method for further information about the various methods.
Baseline column Specifies the baseline column to use (in some normalization methods only).
Percentage Specifies the percentage value (P) to use when normalizing by percentile or by trimmed mean.
Description Shows a brief description of the currently selected normalization method.
Column names setting Specifies how the naming of the normalized columns should be handled. You can either add the word "Normalized:" to the column name of the original columns or use the expression (normalization equation) as a column name. If you have selected to replace columns you will also get a third option where you can keep the current column names.