Issues using Correlation Matrix

User: "MarlaBot"
New Altair Community Member
Updated by Jocelyn
A RapidMiner user wants to know the answer to this question: "Hey there, I'm using the latest version of RM and I had an old process which involved the "Correlation Matrix" operator previously I could see the correlation matrix normally but now, I see a lot of "?"/NaN values for the resulting matrix"

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    User: "varunm1"
    New Altair Community Member
    Accepted Answer
    Updated by varunm1
    Correlation matrix shows "?" if the attributes are non-numericals like text. Can you ask the user to check if attributes are numerical?

    We can deep dive if the user could provide XML or Data