Matlab giving error for tall array assignment

Question

Maggie Chong 2023-6-25

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https://ww2.mathworks.cn/matlabcentral/answers/1987913-matlab-giving-error-for-tall-array-assignment

评论： Paul 2023-6-26

Hello,

I need to use tall arrays because MATLAB is running out of memory due to the size of my V matrix ( there is a long checking and filling sequence using a random sequential adsoprtion algorithm) after the bit of code I am including here. How do I fix this error?

rng(69)
n = 10;
grid = 3;
% Coupon dimensions
Length = 76;
Width = 25;
mesh_size =1;
% Coupon dimensions
[X,Y] = meshgrid(-Length:mesh_size:Length, -Width:mesh_size:Width);
% Coupon dimensions
[X3,Y3,Z3] = meshgrid(-grid:mesh_size:grid, -grid:mesh_size:grid, 1:n);
Error using grid
Too many output arguments.
S = zeros(size(X));
smallV = zeros(size(X, 1), size(X, 2), n);
V = tall(V);
A = V;

Error using tensiletest

Argument 1 to SUBSASGN must be one of the following data types: logical.

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Answer 1

Paul 2023-6-25

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https://ww2.mathworks.cn/matlabcentral/answers/1987913-matlab-giving-error-for-tall-array-assignment#answer_1262223

The code doesn't define a variable named grid. It's getting confused with the function grid

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Maggie Chong 2023-6-26

Hello! I forgot to include it in the questions, the grid element is actually defined.

Paul 2023-6-26

在 MATLAB Online 中打开

Now that the variable grid is defined, we have a new problem. The variable V is not defined.

rng(69)
n = 10;
grid = 3;
% Coupon dimensions
Length = 76;
Width = 25;
mesh_size =1;
% Coupon dimensions
[X,Y] = meshgrid(-Length:mesh_size:Length, -Width:mesh_size:Width);
% Coupon dimensions
[X3,Y3,Z3] = meshgrid(-grid:mesh_size:grid, -grid:mesh_size:grid, 1:n);
S = zeros(size(X));
smallV = zeros(size(X, 1), size(X, 2), n);
V = tall(V);
Unrecognized function or variable 'V'.
A = V;