在 MATLAB 中检查数组或矩阵是否为空
Sheeraz Gul
2022年5月11日
一个简单的空矩阵是维度为 0 x 0 的矩阵。维度为 0 x n 和 n x 0 的矩阵也是空的。
本教程演示如何使用 isempty() 检查数组或矩阵是否为空。
在 MATLAB 中使用 isempty() 确定数组或矩阵是否为空
isempty() 方法检查矩阵或数组是否为空。如果数组为空，它将返回 1 为真，否则返回 0 为假。
例子：
A = [1, 2, 3];
B= [];
C = rand(2,2,2);
D = [1 3 5; 2 4 6; 7 8 10];
D(:,:,:) = []; %% Deleting the members of D matrix
disp('The Result for array A is: '); disp(isempty(A))
disp('The Result for array B is: '); disp(isempty(B))
disp('The Result for Matrix C is: '); disp(isempty(C))
disp('The Result for Matrix D is: '); disp(isempty(D))
输出：
The Result for array A is:
0
The Result for array B is:
1
The Result for Matrix C is:
0
The Result for Matrix D is:
1
作者： Sheeraz Gul
Sheeraz is a Doctorate fellow in Computer Science at Northwestern Polytechnical University, Xian, China. He has 7 years of Software Development experience in AI, Web, Database, and Desktop technologies. He writes tutorials in Java, PHP, Python, GoLang, R, etc., to help beginners learn the field of Computer Science.
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