"a question about filter data or SQl Querying with Rapid Miner"
hello,
can somebody tell me please, how I can find out which data fields are not fulfilled . for example, I have a data bank and I want to know which customer has not given his address. i.e which customer id has a missing value. I have tried it with select attribute, but it did not work. Thank you for your reply.
can somebody tell me please, how I can find out which data fields are not fulfilled . for example, I have a data bank and I want to know which customer has not given his address. i.e which customer id has a missing value. I have tried it with select attribute, but it did not work. Thank you for your reply.