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I am interested to measure a precision@k. The Classify function provides a build in an option for that or an elegant approach to calculate this without the need to implement the definition of precision@k? The definition of precision@k is

precision@k = (# of recommended items @k that are relevant) / (# of recommended items @k)

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  • $\begingroup$ Can you give a MWE with the intended output. What is unclear to me "precison@k" is what: PPV_k? or something else? $\endgroup$ – mgamer Dec 20 '18 at 17:36
  • $\begingroup$ I'll try later, right now I'm just with a mobile phone. I did not really understand what is PPv_k that you use. $\endgroup$ – Kiril Danilchenko Dec 20 '18 at 17:43

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