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sa mi
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how to calculate precision and recall in MATLAB?

Asked by sa mi
on 19 May 2015
Latest activity Edited by As Has on 29 Jan 2018
how to calculate precision and recall in MATLAB?is there any builtin function for this

  3 Comments

Can you elaborate? I don't understand the question. MATLAB by default uses double precision, but it also has a single precision type available. There is also extended precision available with vpa from the Symbolic Toolbox.
i am talking about simple precision and recall calculation in matlab precision= relevent retrivae/total retrive recall=relevent retrive/total relevent how to code it in matlab?
r u there???

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1 Answer

Answer by As Has on 29 Jan 2018
Edited by As Has on 29 Jan 2018

[Xpr,Ypr,Tpr,AUCpr] =perfcurve(targets, scores, 1, 'xCrit', 'reca', 'yCrit', 'prec');
plot(Xpr,Ypr)
xlabel('Recall'); ylabel('Precision')
title(['Precision-recall curve (AUC: ' num2str(AUCpr) ')'])
****************or you can use these equations
p=tp/(tp+fp);
r= tp/(tp+fn);
F= ( 2*p*r)/(p+r);

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