how can i compare each value in a vector?

hi this is my program, still a beginner. i need to know a way to compare each angle (in the angle vector) with different if statements but its not working! what is wrong??

outcome=[0 0 0 0 0 0 0 0];
angle=[-20 -18.4 -17 -10 10 17 18.4 20];
for i=1:8
  if angle(i) <=15.52
  outcome(i)=disp('blocked');
  elseif angle > 15.52 && angle < 18.1
  outcome(i)=disp('goal')
elseif angle >=18.1 && angle <=18.7
  outcome(i)=('hit the post')
else
  outcome(i)=disp('wide')
end
end
for i=1:8
 fprintf('i= %d\t angle= %6.2f \t outcome= %d \n',i,angle(i),outcome(i))
end

Answer 1

[John BG]

what about the following:

angle=[-20 -18.4 -17 -10 10 17 18.4 20];
outcome=zeros(1,length(angle))
range=[0 15.52 18.1 18.7 360]

% possible angle correction
% for k=1:1:length(angle)
%     if angle(k)<0
%         angle(k)=angle(k)+360
%     end
% end

% another possible angle correction
angle_abs=abs(angle)

for k=1:1:length(angle_abs)
    h=histogram(angle_abs(k),range)
    nbin=find(h.Values>0)
    switch nbin
        case 1
            outcome(k)=-1
            disp('blocked')
        case 2
            outcome(k)=1
            disp('goal');
        case 3
            outcome(k)=0
            disp('hit post')
        case 4
            outcome(k)=0
            disp('out of range')
        otherwise
            disp('not an angle')
    end
end

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thanks in advance

John

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