Hi, I am new using Knime and i was trying to make a prediction model, in most of the examples that i have seen people use the Domain calculator node, but i don’t really understand why it’s important to include this node. Can someone help me with this?
Hi there @kerb98,
welcome to KNIME Community!
As some node do not refresh domain it is necessary to use Domain Calculator to do so. Otherwise domain includes old values. See here for more: Color Manager after Row Filter shows filtered values too...
You can also try running workflow example with and without it to see difference
Ok, thanks! I will try what you just say. Can you explain me please what is the “Restrict number of possible values” option for?
to define how many unique values are stored in table spec/metadata. You can check this in Spec tab of node output port. Additionally here is good explanation: Nominal Value Row Filter - Issue on limitation of values
Thanks! Now i have a better idea of the node.
Glad to hear that @kerb98
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