Error in find Precision recall curve

Hello

I am following https://www.mathworks.com/help/stats/perfcurve.html#bunsogv-XCrit to find PR curve. On x axis i need recall value and on y axis i want precision value. as per the syntax it would be

'XCrit','tpr'

'YCrit','ppv'

but is shows error

['XCrit','tpr','YCrit','ppv'] = perfcurve(Y,diffscore1,'HandGrip');

Error: Assigning the function output to this expression is not supported.

Please help me

Answer 1

[Sargondjani]

Try without the quotations:

[XCrit,tpr,YCrit,ppv] = perfcurve(Y,diffscore1,'HandGrip');

In general quotations are used to specify strings (ie. names), which are not necessary for variable names.

[Ali Asghar]

Hey Sargondjani

Thanks alot. code run without error but its not giving the graph like PRC curve. I got below curve. Please tell me am i put right value in x and y axis? like x is tpr and y is ppv...