how to change upper case to lower case of one attribute in an example set

User: "EL75"
EL75
New Altair Community Member
Updated by Jocelyn
hi Rapidminer community, I'd like to know how to change upper case to lower case of one attribute in an example set : the Transform Cases only accept as an input a document, not a spreadsheet with attributes.
Tank you for your help :)

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    User: "kayman"
    kayman
    New Altair Community Member
    Accepted Answer
    your spreadsheet will be handled as data (flat file recordset) once loaded, so you can use the generate attributes operator for this.
    Just create a 'new' instance of your attribute, if your upper case attribute is called att1 for instance, use the generate attributes like this : 

    attribute name : att1 (so just your old name)
    function expressions : lower([att1])

    This will 'replace' your old attribute with the new lower case format using the same name
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