Oh, OK, sorry, you’re using 6.10 and I think it’s too old. It has been introduced in 6.14, according to this post: RDataFrame, a modern tool to manipulate and analyze ROOT datasets
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Oh, OK, sorry, you’re using 6.10 and I think it’s too old. It has been introduced in 6.14, according to this post: RDataFrame, a modern tool to manipulate and analyze ROOT datasets