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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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Accepted answers

MartinLiebig

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.

MartinLiebig

that means the data is not there. Likely he renamed it before or something. Also be careful with white spaces in attribute names.

All comments

MartinLiebig

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.

User46772

Thank you very much. It is red.

MartinLiebig

that means the data is not there. Likely he renamed it before or something. Also be careful with white spaces in attribute names.

User46772

Thank you, I asked the student to make everything again carefully and the error did not happen. Thank everyone again.