MATLAB中N矩阵的交点

发布于 2025-01-28 10:50:27 字数 357 浏览 1 评论 0原文

我有一个矩阵IntialMat，并且具有其他n个矩阵的结构。我想拥有与矩阵IntialMat相交的矩阵的索引。我该如何在MATLAB中这样做？

例如initialmat = [2，5，88; 55 63 4] 和结构矩阵有n个矩阵：

Mat1=[1, 55,12; 45 78]
Mat2=[12, 14; 42,165]
Mat3=[2,18,11; 13,80; 10, 99]
.
.
.
.
.
.
MatN=[4, 77;63,20]

我想要的结果是交叉点的值和名称 Matrice或其索引：具有MAT3的值2（索引3）带有MATN的值4（索引n）

原文

I have a matrix IntialMat, and I have a structure with N other matrices. I want to have the indices of the matrices that intersect with a least one element of the matrix IntialMat. How can I do that in MATLAB?

For example InitialMat=[2, 5, 88; 55 63 4]
And structure MatriciesStor have N matrices :

Mat1=[1, 55,12; 45 78]
Mat2=[12, 14; 42,165]
Mat3=[2,18,11; 13,80; 10, 99]
.
.
.
.
.
.
MatN=[4, 77;63,20]

The result that I want is the value of the intersection and the name
of the matrice or its index:
the value 2 with Mat3 (index 3)
The value 4 with MatN (index N)

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还如梦归 2025-02-04 10:50:27

您可以在这样的矩阵上循环：

IntialMat = randi(100, 3);
for i = 1:10
    MatriciesStor{i} = randi(100, 3);
end

% Now compare all Mats against IntialMat
for i = 1:10
    inter = intersect(MatriciesStor{i},IntialMat);
    if ~isempty(inter)
        fprintf("\nMatrix %d has intersections: %d", i, inter);
    end
end
fprintf("\n");

给出类似的东西：

Matrix 1 has intersections: 18 
Matrix 2 has intersections: 46 
Matrix 3 has intersections: 18 38 
Matrix 7 has intersections: 79 
Matrix 8 has intersections: 51 
Matrix 9 has intersections: 75

You can loop over the matrices like this:

IntialMat = randi(100, 3);
for i = 1:10
    MatriciesStor{i} = randi(100, 3);
end

% Now compare all Mats against IntialMat
for i = 1:10
    inter = intersect(MatriciesStor{i},IntialMat);
    if ~isempty(inter)
        fprintf("\nMatrix %d has intersections: %d", i, inter);
    end
end
fprintf("\n");

which gives something like:

Matrix 1 has intersections: 18 
Matrix 2 has intersections: 46 
Matrix 3 has intersections: 18 38 
Matrix 7 has intersections: 79 
Matrix 8 has intersections: 51 
Matrix 9 has intersections: 75

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