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How should this problem be solved

cindy030717cindy030717 Member Posts: 3 Newbie
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    AndrewAndrew RapidMiner Certified Expert, RapidMiner Certified Master, Member Posts: 47 Guru
    Solution Accepted
    Some of your attributes are strings (known as nominals) and linear regression works with numbers alone. As the error message suggests, use an operator to change nominals to numeric - in fact there is one called "Nominal to Numeric" that could be used. 
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