Due to recent updates, all users are required to create an Altair One account to login to the RapidMiner community. Click the Register button to create your account using the same email that you have previously used to login to the RapidMiner community. This will ensure that any previously created content will be synced to your Altair One account. Once you login, you will be asked to provide a username that identifies you to other Community users. Email us at Community with questions.
Correlation-Matrix for Mixed Values (nominal, numeric)
WaggaWagga
Member Posts: 6 
Contributor II
Hi,
I am just wondering about my results of the correlation matrix. My use case is based on nominal and numeric attributes, stored in a Postgres DB. One table is referenced by a foreign key. If I use the ID of the foreign as my second value to be correlated, my results are not similar than in the case of a join and the usage of a text/string value instead of the ID.
Can someone of you explain these big differences?
Best
WaggaWagga
I am just wondering about my results of the correlation matrix. My use case is based on nominal and numeric attributes, stored in a Postgres DB. One table is referenced by a foreign key. If I use the ID of the foreign as my second value to be correlated, my results are not similar than in the case of a join and the usage of a text/string value instead of the ID.
Can someone of you explain these big differences?
Best
WaggaWagga
Tagged:
0
