what is meant by index exceed matrics dimension?
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when i run this code its showing error as index exceed matrix dimension.please help me. i also tried debugging.
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Adam
2016-11-4
If you are new to Matlab this is exactly the kind of basic problem you need to be able to learn how to solve and using the debugger and command line is the best way to do that. You ought to understand your own code and what it is supposed to do better than anyone else.
回答(2 个)
Thorsten
2016-11-4
编辑:Thorsten
2016-11-4
If you have a 1 x 3 matrix
A = [6 7 9]
and try to access an element that does not exist, like A(2,3) or A(1, 4), you get the error: Index exceeds matrix dimension, because in the first case your index 2 exceeds the matrix dimension 1, and in the second case, your index 4 exceeds the matrix dimension 3.
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Steven Lord
2016-11-4
If MATLAB was a pirate ship, this behavior that causes this error would be the equivalent of trying to walk to the 4th step of a plank that is 3 steps long.
You need either to use a longer plank (increase the length of the vector into which you're indexing) or to take fewer steps (use a smaller index into the vector.)
A = [1 2 3];
A(4) % this will throw the "Index exceeds matrix dimensions" error
A2 = [1 2 3 4]; % you're using a longer plank
A2(4) % and taking the same number of steps so this will work
A3 = [1 2 3]; % the plank is the same length as the first one
A3(3) % but you're taking fewer steps so this will work
Walter Roberson
2016-11-4
Undefined function or variable 'eNodeB'.
Error in code (line 21)
p(time)=eNodeB(w,Rate(i_rate));
You have not provided us with what we need to test your code.
4 个评论
Walter Roberson
2016-11-5
Error using fzero (line 241)
FZERO cannot continue because user-supplied function_handle ==> @(x)utility_UE(x,ii,pp) failed with the error below.
Undefined function 'utility_UE' for input arguments of type 'double'.
Error in code (line 25)
soln(i)=fzero(@(x) utility_UE(x,ii,pp),[0.001 1000]);
That is, we also need utility_UE
Walter Roberson
2016-11-5
"how to solve this?"
... by posting the code for utility_UE along with any other of your routines that utility_UE calls.
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