why is there no output?

Question

Lee 2013-5-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/74677-why-is-there-no-output

 im suppose to create a function that gets a vector x of 10 elements and returns
a new vector with 10 elemnts.the new vector component (i) is e if i was bigger then 1 1/e if i was smaller then zero and e^(2*x(1,i)-1) if i was between 0 and 1

this is what i did for some reason i get no return what am i doing wrong?

function targil7=targil(x)
z=length(x);
w=zeros(1,10);
for i=1:z
  if x(1,i)>1
     w(1,i)=w(1,i)+exp(1);
  else if x(1,i)<0
         w(1,i)=w(1,i)+exp(-1);
      else if 0<x(1,i)<1
             w(1,i)=w(1,i)+exp(2*(x(1,i)-1));
          end
      end
  end
end
targil7=w;
whats am i doing wrong?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2013-5-5

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/74677-why-is-there-no-output#answer_84466

在 MATLAB Online 中打开

if 0<x(1,i)<1

is not correct. To MATLAB it means ((0<x(1,i)) < 1) which means to compute the logical result of the comparison to 0, getting a 0 or 1 as a result, and then to test that value to see if it is less than 1. Try

if 0 < x(1,i) & x(1,i) < 1

Note: when you do that, you need to figure out what you want to do if that test is not true either. If there are no circumstances under which it could be false at that point, then skip the test and just do the assignment.