Can you set a column as the primary key? Like in SQL?
data_frame as default! Only annoyance is when you really need rownames. Thought of making a data_frame2 class...https://twitter.com/heyaudy/status/770658444286189569 …
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I guess. However, this is annoying because many functions require the data to be of a uniform nature, e.g. rowMeans, so I like rownames.
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I think it would make sense to use a matrix in that case
End of conversation
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