<div dir="ltr">Hi, All<div><br></div><div>a bit confused by the output from tutorial Part 4: </div><div><br></div><div>so here is the output from the confusion matrix summary</div><div><br></div><div><div>----------.</div>
<div>predictions\targets     bottle         cat          chair          face         house        scissors    scrambledpix      shoe</div><div>            `------  ------------  ------------  ------------  ------------  ------------  ------------  ------------  ------------ P'   N'   FP   FN   PPV  NPV  TPR  SPC  FDR  MCC  F1</div>
<div>       bottle             6             0             3             0             0             5             0             1       15   75    9    6   0.4 0.92  0.5 0.88  0.6 0.34 0.44</div><div>        cat               0             10            0             0             0             0             0             0       10   67    0    2    1  0.97 0.83   1    0  0.79 0.91</div>
<div>       chair              0             0             7             0             0             0             0             0        7   73    0    5    1  0.93 0.58   1    0  0.66 0.74</div><div>        face              0             2             0             12            0             0             0             0       14   63    2    0  0.86   1    1  0.97 0.14  0.8 0.92</div>
<div>       house              0             0             0             0             12            0             0             0       12   63    0    0    1    1    1    1    0  0.87   1</div><div>      scissors            2             0             1             0             0             6             0             0        9   75    3    6  0.67 0.92  0.5 0.96 0.33 0.48 0.57</div>
<div>    scrambledpix          2             0             1             0             0             0             12            1       16   63    4    0  0.75   1    1  0.94 0.25 0.75 0.86</div><div>        shoe              2             0             0             0             0             1             0             10      13   67    3    2  0.77 0.97 0.83 0.96 0.23 0.69  0.8</div>
<div>Per target:          ------------  ------------  ------------  ------------  ------------  ------------  ------------  ------------</div><div>         P                12            12            12            12            12            12            12            12</div>
<div>         N                84            84            84            84            84            84            84            84</div><div>         TP               6             10            7             12            12            6             12            10</div>
<div>         TN               69            65            68            63            63            69            63            65</div></div><div><br></div><div><br></div><div>for example, in bottle category, </div><div>
<br></div><div>P=12, N=84; </div><div><br></div><div>True Positive= 6; False Positve=3+5+1; False Negative=2+2+2=6; that left us with TN=84-9=75.. </div><div><br></div><div>so where does the reported 69 comes from? </div>
<div><br></div><div>Best,</div><div>Tony</div></div>