what is mean of 5 which come as output if it is accurcy it is out of 7 or 100

I'm working on a disease classification

I have 7 samples for train and 7 samples for test. This is my code:

 Label=[1;1;1;1;1;1;1;-1;-1;-1;-1;-1;-1;-1;];
 Trainset=[376,298;
     89,154;                          
 266,114;                         
 298,200;                         
 323,226;                         
 307,265;                         
 210,307;                         
 350,302;                         
 222,224;                         
 367,506;                         
 457,141;                         
 272,294;                         
 423,508;                         
 151,124;];
 Testset=[ 448,232;
 366,360;
 370,353;
 142,545;
 345,457;
 443,448;
 138,386;
541,250;
364,210;
280,504;
427,386;
333,153;
86,335;
332,511;];

model=svmtrain(Trainset,Label,'ShowPlot',true);
Group = svmclassify(model,Testset,'Showplot',true)

but when I want to calculate accuracy with code below, it shows output ''5''

 >> acc = sum(1 == testoutput) / numel(-1)

my question is "what is mean of 5 which is come as output"?

Answer 1

[Walter Roberson]

You do not show any assignment to testoutput

numel(-1) is the number of elements in the numeric scalar (-1) which is going to be 1. That does not appear to be a useful expression.

[shakira idrees]

1 is the label of healthy pixels and -1 is the label of diseases pixel

[Walter Roberson]

That's nice, but irrelevant.

http://www.mathworks.com/help/matlab/ref/numel.html