Error message
I am an information management professor and I am using the book "Data Mining for the Masses" to guide my students through each chapter. One of them is getting the following error message "Cannot instantiate 'custom filters': Attribute 'deterioration' was not found in input data" when adding a 'Filter Example' operator to a dataset. Can someone help?
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MartinLiebig

Accepted Answer
Is it a red or a yellow one?
Likely he did not use the Import Wizard of Read Excel and thus the meta data is not populated and he gets an orange warning.
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