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Trying to set up a matrix, getting error message

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TheSaint
TheSaint 2024-2-2
评论： TheSaint 2024-2-2
Ran in:
This is my current code, every time I attempt to run it I get an error message that says "Index in position 1 exceeds array bounds." How do I fix this?
Matrix = fscanf(fid, '%f', [3, 4]);
Unrecognized function or variable 'fid'.
w = Matrix(1,:);
t = Matrix(2, : );
g = Matrix(3, : );
  1 个评论
VBBV
VBBV 2024-2-2
Ran in:
% fid = 0;
% Matrix = fscanf(fid,'%f', [3, 4])
Matrix = [3, 4] % if this is your input Matrix read
Matrix = 1×2
3 4
size([3 4])
ans = 1×2
1 2
w = Matrix(1,:);
t = Matrix(2, : ); % here is the error where you try to access non-existent row
Index in position 1 exceeds array bounds. Index must not exceed 1.
g = Matrix(3, : );
you try to access non-existent row for the Matrix vector whose size consists of only 1 row

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采纳的回答

Voss
Voss 2024-2-2
Check the size of Matrix.
You may be able to use a different function to read your file, e.g., readmatrix instead of fopen/fscanf/fclose.

更多回答（1 个）

Walter Roberson
Walter Roberson 2024-2-2
You have accidentally created a variable named fscanf

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