How to compute & plot Equal Error Rate (EER) from FAR/FRR values using matlab

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Balaji M. Sontakke 2018-5-1

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https://ww2.mathworks.cn/matlabcentral/answers/398384-how-to-compute-plot-equal-error-rate-eer-from-far-frr-values-using-matlab

I have the following values against FAR/FRR of 20 classes. i want to compute EER rates and then plot in matlab.

       FPR       FNR    Thr
      ________    ___    ___
           0      1      2
    0.053333      1      2
     0.10667      1    1.9
        0.16      1    1.8
     0.21333      1    1.7
     0.26667      1    1.6
        0.32      1    1.5
     0.37333      1    1.4
     0.42667      1    1.3
        0.48      1    1.2
     0.53333      1    1.1
     0.58667      1      1
        0.64      1    0.9
     0.69333      1    0.8
     0.74667      1    0.7
         0.8      1    0.6
     0.85333      1    0.5
     0.89333    0.8    0.4
     0.94667    0.8    0.3
           1    0.8    0.2
           1      0    0.1