MATLAB: I need to classify the result in catagories

classificationif statement

I have this in my code
N=ones(1,numel(ma)); 
% ma is a matrix can be given from other equations.
N(ma==45 | ma==135)=0.5;
N(0< ma<45 | 45<ma<90)=1.5;
N(0< ma<45 | 45<ma<90)=1.5;
N(90<ma<135 | 135<ma<180)=1.5;
N(ma==0 | ma==180)=0;
N(ma==90)=1;
NA=N';
NN=sum(NA(:));
Pn=ones(1,numel(NN));
Pn(NN>5)= 100000;
Pn(NN==5)=100000;
Pn(NN<5)=1;
I had the pervious fcn, but is doesn’t work.
The results as 
ma=[-35.2644,0,0,-45.0000,-45.0000,0,35.2644,54.7356,30.0000,45.0000,0,-45.0000,30.0000,-54.7356,-54.7356,-54.7356,-35.2644]
N=[1.5000,0,0,1.5000,1.5000,0,1.5000,1.5000,1.5000,1.5000,0,1.5000,1.5000,1.5000,1.5000,1.5000,1.5000]
In other words I want to say:-
If ma=45 or 135 (with negative or positive signs) make N =0.5
If ma=0 or 180 , make N =0
If ma=90 or 275 (with negative or positive signs) make N =1
Otherwise make N= 1.5
Then Pn like that 
If NN>or =5 make Pn=100000
If NN<5 Make Pn=1

Best Answer

Try this: 
ma=[-35.2644,0,0,-45.0000,-45.0000,0,35.2644,54.7356,30.0000,45.0000,0,-45.0000,30.0000,-54.7356,-54.7356,-54.7356,-35.2644,NaN,90 275,180];
sdv = abs(sind(ma));
cls = 1.5*ones(size(sdv));                                       % Classification Vector
cls((sdv >= 0.69) & (sdv <= 0.72)) = 0.5;
cls(sdv > 0.9) = 1;
cls(sdv < 0.1) = 0;
To see the result: 
Out = [ma; cls]                                                 % Result & Matching Inputs
Experiment to get the result you want.
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