Data Mining - Professional SQL Server Analysis Services 2005 with MDX - page 736

Figure 14-5
9. On the Specify Training Data page of the wizard you need to select
the columns from the source table(s) that are to be used in creation
of mining models. In addition, you need to specify whether a specific
column should be used as a key column, input column, or predict-
able column. If you specify a column as an input column, Analysis
Services uses this column as an input to the mining model for de-
termining patterns. If a specific column is marked as predictable,
Analysis Services allows you to predict this column for a new data
set based on the existing model if the input columns for the new data
set are provided.
◦ In the current data set you want to predict if a customer is a
potential buyer of bikes. The column BikeBuyer determines
if an existing customer bought bikes before. Therefore, you
need to mark this column as a predictable column. Once
you have marked this column as predictable, you need to
identify the potential factors that can influence a customer
who buys bikes. If you think certain factors can influence a
customer to buy bikes we recommend you select those
columns as input columns. The wizard provides you a way
to recommend columns as input columns by analyzing a