Database Reference
In-Depth Information
Filter Examples operator over and connect it into your stream, right after the Replace
Missing Values operator. Your window will look like Figure 3-26.
Figure 3-26. Adding a filter to the stream.
2) In the condition class, choose 'attribute_value_filter', and for the parameter_string, type
the following: Online_Shopping=. Be sure to include the period . This parameter string
refers to our attribute, Online_Shopping, and it tells RapidMiner to filter out all
observations where the value in that attribute is missing. This is a bit confusing, because in
Data View in results perspective, missings are denoted by a question mark (?), but when
entering the parameter string, missings are denoted by a period (.). Once you've typed
these parameter values in, your screen will look like Figure 3-27.
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