The wizard displays a list of the possible attributes to be used. You can change the data mining type and the datatype of attributes, and you can identify the attribute as unique (different value for every case) or not. You can also view a histogram for an attribute.
The following information is displayed:
The attribute grid contains all attributes except for the target attribute, which is listed above the grid.
The attributes are displayed in a grid that has the following columns:
numerical
or categorical
. The default value for mining type is determined as follows:
NUMBER
or FLOAT
, then the mining type is numerical
.categorical
.NUMBER
(preferably an integer type, but precision and/or scale are allowed); the mining type can be either numerical
or categorical
. You can change the mining type, the datatype of numerical attributes, and the value in the Unique column as described in Change Attribute Characteristics.
To view a histogram of an attribute, select the attribute, and click Histogram.
To restore the original mining type defaults for all the attributes in the table, click Restore.
When you are done, click Next.
You can make the following changes:
NUMBER
or FLOAT
, click the Mining Type column for the attribute. Select the new mining type from the dropdown list.numerical
, you can change the datatype between NUMBER
and FLOAT
. To do this, click on the cell that you want to change, and select the new datatype from the dropdown list. You can click the Restore to undo the exclude operation.
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