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"filter by upper case letter?"
I just recently installed Rapid Miner for a university project. I only worked with R so far so this is quite new and challenging for me.
I want to extract text from newspaper frontpages as part of analyzing agenda setting in German politics.
My question would be if it is possible to filter by upper case letter... German nouns start with upper case and I would like to filter that. Unfortunately, I have no idea how to do that. Any help is appreciated