how to convert values into matrix form????

8 vues (au cours des 30 derniers jours)
Suchit Shah
Suchit Shah le 20 Avr 2015
Réponse apportée : BhaTTa le 25 Juil 2024
convert these values into matrix as shown in the image.

Réponses (1)

BhaTTa
BhaTTa le 25 Juil 2024
Converting a given set of values into a matrix format in MATLAB can be done in various ways depending on the structure of the input data. Below are different scenarios and their corresponding solutions:1. Converting a Vector to a Matrix
If you have a vector and you want to reshape it into a matrix, you can use the reshape function.
% Given vector
vector = 1:12;
% Convert to a 3x4 matrix
matrix = reshape(vector, 3, 4);
disp(matrix);
2. Converting a Cell Array to a Matrix
If you have a cell array of numerical values, you can convert it to a matrix using cell2mat.
% Given cell array
cellArray = {1, 2, 3; 4, 5, 6; 7, 8, 9};
% Convert to a matrix
matrix = cell2mat(cellArray);
disp(matrix);
3. Converting a Table to a Matrix
If you have a table, you can convert it to a matrix using table2array.
% Given table
T = table([1; 4; 7], [2; 5; 8], [3; 6; 9], 'VariableNames', {'A', 'B', 'C'});
% Convert to a matrix
matrix = table2array(T);
disp(matrix);
4. Converting a Struct to a Matrix
If you have a struct array, you can extract the fields and convert them to a matrix.
% Given struct array
S(1).A = 1; S(1).B = 2; S(1).C = 3;
S(2).A = 4; S(2).B = 5; S(2).C = 6;
S(3).A = 7; S(3).B = 8; S(3).C = 9;
% Convert to a matrix
matrix = cell2mat(struct2cell(S))';
disp(matrix);
5. Converting Text Data to a Matrix
If you have text data (e.g., from a file), you can read it and then convert it to a matrix.
% Given text data (as a string for this example)
textData = '1 2 3\n4 5 6\n7 8 9';
% Convert to a matrix
data = sscanf(textData, '%f');
matrix = reshape(data, 3, 3)';
disp(matrix);

Catégories

En savoir plus sur Cell Arrays dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by