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.
Answers
the RapidMiner Enterprise Edition offers an editor (in some sense similar to Excel) for changing data and even the meta data after the data has been imported to the RapidMiner repository. Please contact our sales team if you are interested in the Enterprise Edition.
With the Community Edition, you could either re-import the data after having it changed outside of RapidMiner or use operators (e.g. Set Data) if you need these changes more than once.
Cheers,
Ingo