Keep getting 'not enough input argumets' error

 function output = g_x(x)
%This function finds the values of g(x)
set1=find((x)<((-pi)/2))
output(set1)=-1
x1 =((x)>=((-pi/2)))
x2 =abs(x)<=((pi/2))
set2=find(and(x1,x2))
output(set2)=sin(set2)
set3=find(abs(x)>(pi/2))
output(set3)=1
end

x = input('enter increment of spacing...')
x = [(-pi):x:(pi)]
y=g_x
end

The top is the function and the bottom is the script i'm using to create a graph however when i enter in a inrement value it never works and pops up with said error

Answer 1

[Star Strider]

Try this:

y=g_x(x);

[Pavinder Cheema]

thank you it worked

[Star Strider]

My pleasure.