Question


How to select random number in a matrix?
The following command can find all max values in each iteration of matrix m and then chose *first* one: [rowsOfMaxes colsOf...

9 years ago | 1 answer | 0

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answer

Question


How to sum up of sum unique arrays in a matrix
Suppose I have a matrix a: a = [12,7,1,1,1,1;28,5,2,1,1,1;28,4,2,2,1,1;32,10,2,1,1,1;32,10,2,2,1,1;37,2,4,1,1,1;48,11,4,1...

9 years ago | 3 answers | 0

3

answers

Question


How to make a new matrix with all common arrays from different matrices
Suppose I have some matrices as follow: m1 = [1;2;3;4;5;6;7;8]; m2 = [2;3;4;6;7;8;9;10;11;12]; m3 = [4;5;6;7;8;9;1;;1...

9 years ago | 3 answers | 0

3

answers

Question


Join some matrices without repeating arrays
Suppose I have matrices r1, r2 and r3 as follows: r1 = [50;10;90;30]; r2 = [60;50]; r3 = [30;20;100]; I need a joi...

9 years ago | 1 answer | 0

1

answer

Question


How to remove some arrays in a matrix
Suppose I have a matrix m: m = [3;5;6;1;2;8;5;2;9;1;2;7;8;3;4;9;3]; and restricted matrices r1 and r2: r1 = [5;1;9;...

9 years ago | 1 answer | 0

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Question


How to split output in Matlab and save it in two different excel files?
Is there any way that we can split output and save it two different excel files or even two different sheets in a excel file? ...

9 years ago | 1 answer | 0

1

answer

Question


How to add a header line to txt file?
How can I add a header line to the following code (header for txt output): O = [2,1;4,6;2,10;6,800]; fid = fopen('Output...

9 years ago | 1 answer | 0

1

answer

Question


How to find index of first 3 maximum number in matrix
I have the following function that n is the first 3 maximum value of matrix m: m = [7;1;4;4;12;2;6;10;2]; temp = sort( m...

9 years ago | 3 answers | 0

3

answers

Question


How to get first 3 maximum number in a matrix
Suppose I have a matrix m: m = [7;1;4;4;12;2;6;10;2]; I want to find first 3 maximum in matrix m, means like: n = [...

9 years ago | 3 answers | 0

3

answers

Question


Join some matrices to one matrix
I have a cell array of matrix m{j} % which row numbers are different in each j How can I bring all of them in one matrix? ...

9 years ago | 1 answer | 0

1

answer

Question


Mis match of dimensions
Suppose I want to find all maximum number in the matrix m: I used this command line: mm(:,:,j) = find( m(:,:,j) == maxli...

9 years ago | 1 answer | 0

1

answer

Question


Reshape a matrix in different way
Is there any other way to re-code this function (perhaps with for loop): mmm = [2;3;4;8;9;11;13;14;15;16]; Dmm = zeros(2...

9 years ago | 1 answer | 0

1

answer

Question


Sum of all odd and even arrays in matrix
Suppose I have a matrix a: a = [2,3;1,2;1,2;0,1;1,2;3,1;1,3;2,1;2,3;3,1]; I want to build matrix b with dimension 2*2 th...

9 years ago | 1 answer | 0

1

answer

Question


Creating a new matrix from two matrixes
Suppose I have a matrix a: a = [9,1;1,1;3,1;2,1;5,1;6,1;8,1;1,1;2,1;5,1;8,1;2,1]; And I have another matrix b which is l...

9 years ago | 1 answer | 0

1

answer

Question


Bhilding new matrix with selected index number
Suppose I have a matrix a: a = [9;1;3;2;5;6;8;1;2;5;8;2]; And I have another matrix b which is like some selected index ...

9 years ago | 1 answer | 0

1

answer

Question


How to build a new matrix
I have a matrix a = [4;6;8;2;8;2]; And I want it to be like: b = [7;8;11;12;15;16;3;4;15;16;3;4]; Matrix b is ca...

9 years ago | 1 answer | 0

1

answer

Question


How to find a subset matrix in the main matrix and build a new matrix
Hi everyone, Suppose I have two matrices A and B. The matrix A is a subset of matrix B (it can be possible that some of array...

9 years ago | 1 answer | 1

1

answer

Question


Filtering a matrix to some small matrices
Hi everyone, Suppose I have a matrix: a = [12,7;12,5;2,7;23,3;23,43;23,12;3,5;76,21;76,31;4,3;4,7;4,9]; Then I want ...

9 years ago | 2 answers | 0

2

answers

Question


Classification of a matrix to 0 and 1 matrix
Hello everyone, I want matrix A to be like matrix B <</matlabcentral/answers/uploaded_files/15256/Hesam%20(1).jpg>> ...

9 years ago | 3 answers | 0

3

answers

Question


How to find repeated array in a matrix
Hello everyone, Suppose matrix a is like: a=[1;2;2;3;3;4;5;6;6;7;7;7;8]; and matrix b: b=[2;7;1;3;2]; Then, I...

9 years ago | 2 answers | 0

2

answers

Question


How to create a new matrix with some known rows
Hello everyone, Suppose matrix a is like: a = [2;3;6;2]; b = [1 3 6;2 3 7;2 2 1;3 1 9;3 2 8;4 1 5]; Then, I want m...

9 years ago | 1 answer | 0

1

answer

Question


Counting duplicate cells in a matrix
Hello everyone, Suppose matrix a is like: a = [12,28,28,32,32,37,48,72,72,73,73,73,97,100,100,100]; I want matrix b ...

9 years ago | 1 answer | 0

1

answer

Question


List of maximum number in the matrix
Hi everyone, Suppose I have a matrix: a = [3;1;4;2;3;4;1;4;3;1;2;4]; Then I want matrix b to be: b = [3;6;8;12] ...

10 years ago | 2 answers | 0

2

answers

Question


Creating a matrix by some other matrices
Suppos I have: a = [3;3;5;8;2;1;8;1;5]; b = 2 I want matrix c to be: c = [3 2;3 2;5 2;8 2;2 2;1 2;8 2;1 2;5 2] ...

10 years ago | 3 answers | 0

3

answers

Question


Updating values with for-loop
Hello everyone, I want to update the matrix "e" according to the new value of matrix "d" for each iteration. Matrix "d" i...

10 years ago | 1 answer | 0

1

answer

Question


Replacing row number with value
Hi everyone, Suppose I have a matrix a: a = [2 2;1 1;4 1;3 1;4 2]; and matrix b: b = [3;5;1;5;2;4;2;3;5;1]; T...

10 years ago | 2 answers | 0

2

answers

Question


Save max of each iteration
Suppose that matrix A have new value in each iteration (updatable), Is there anyway to save the rowsOfMaxes matrix A in each ite...

10 years ago | 1 answer | 0

1

answer

Question


Find the first position of maximum value in a Matrix
Hello everyone, Suppose there can be the max value at more than one location, how can I catch the first max value. A = [...

10 years ago | 1 answer | 0

1

answer

Question


How to save maximum value in each iteration
Hi everyone, Suppose I have a for-loop: a=rand(1); n(:,:,1) = zeros(1,1); for i = 2:4 n(:,:,i) = n(:,:,i-1)...

10 years ago | 1 answer | 0

1

answer

Question


Sum repetition in matrices
Hi everyone, Suppose I have matrix d1, d2, d3, d4, d5: d1 = [0 0 0 1;0 0 0 0]; % input data d2 = [0 0 0 0;1 0 0 0...

10 years ago | 1 answer | 0

1

answer

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