Answered

Find the cell index in a nested cell array, corresponding to a string (by using strcmp)

A{1} = { ... {'Up' } {'Down' } {'Left' } {'Right'} {'BLUE'} {'1' } {'7' } {'1' } {'8' } ...

Find the cell index in a nested cell array, corresponding to a string (by using strcmp)

A{1} = { ... {'Up' } {'Down' } {'Left' } {'Right'} {'BLUE'} {'1' } {'7' } {'1' } {'8' } ...

28 minutes ago | 0

Answered

Binary floating point Representation in Matlab

To overcome the limitation of dec2bin at 52 bits A=[ 0.1900 -0.0300 -0.1300 0 0.1500 -0.0700 0.0500 0.1600 -0.2500 -0.1900]...

Binary floating point Representation in Matlab

To overcome the limitation of dec2bin at 52 bits A=[ 0.1900 -0.0300 -0.1300 0 0.1500 -0.0700 0.0500 0.1600 -0.2500 -0.1900]...

6 hours ago | 1

Answered

1d Convolution using Matlab's conv() function

Ba Ba Black Sheep wrote len(pad) = floor(len(v) / 2) Actually the above is wrong, In case CONV using with of 'same' option, t...

1d Convolution using Matlab's conv() function

Ba Ba Black Sheep wrote len(pad) = floor(len(v) / 2) Actually the above is wrong, In case CONV using with of 'same' option, t...

7 hours ago | 0

| accepted

Answered

Convolution Computations results for a system response.

You make few mistakes, indexing and flipping (see careful conv documentation, the subtility is there, though TMW never mention w...

Convolution Computations results for a system response.

You make few mistakes, indexing and flipping (see careful conv documentation, the subtility is there, though TMW never mention w...

7 hours ago | 0

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Answered

Find Common elements between any two columns in each matrix

Not sure but keyNeuronMat1(1:10,1:4) & keyNeuronMat2(1:10,5:8) Give you common neurons/groups.

Find Common elements between any two columns in each matrix

Not sure but keyNeuronMat1(1:10,1:4) & keyNeuronMat2(1:10,5:8) Give you common neurons/groups.

11 hours ago | 0

Answered

How to display all decimal numbers for floating numbers?

Try this fprintf('num1+num2 = %1.16g\n',adding_num1_and_num2)

How to display all decimal numbers for floating numbers?

Try this fprintf('num1+num2 = %1.16g\n',adding_num1_and_num2)

20 hours ago | 0

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Answered

randomly divide vector into 2 parts.

For the record, here is how I would do: n = size(index_rating,1); i = randperm(n,round(training_data*n)); dataTraining = in...

randomly divide vector into 2 parts.

For the record, here is how I would do: n = size(index_rating,1); i = randperm(n,round(training_data*n)); dataTraining = in...

23 hours ago | 2

Answered

Conditioning bivariate gaussian distribution

There a few issues with your code. First INTEGRAL is integration of a scalar function, you cannot integrate a vector function. ...

Conditioning bivariate gaussian distribution

There a few issues with your code. First INTEGRAL is integration of a scalar function, you cannot integrate a vector function. ...

23 hours ago | 0

| accepted

Answered

randomly divide vector into 2 parts.

Always post complete code that can run. don't less us geuss what is the size/class of the inputs First assumption: non_zero_ent...

randomly divide vector into 2 parts.

Always post complete code that can run. don't less us geuss what is the size/class of the inputs First assumption: non_zero_ent...

1 day ago | 1

Answered

Filling area between more curves

Change accordingly to suit your need. tt = linspace(0,2*pi,361); xy = [2*cos(tt); 4*sin(tt)]; close all hold on pl...

Filling area between more curves

Change accordingly to suit your need. tt = linspace(0,2*pi,361); xy = [2*cos(tt); 4*sin(tt)]; close all hold on pl...

1 day ago | 3

| accepted

Answered

how to change axis of a matix?

load('testdata.mat'); Ufun = @(X,Y,Z) X; Vfun = @(X,Y,Z) Y./(Z+200); [X,Y,Z] = ndgrid(x,y,z); U = Ufun(X,Y,Z); V = Vfun...

how to change axis of a matix?

load('testdata.mat'); Ufun = @(X,Y,Z) X; Vfun = @(X,Y,Z) Y./(Z+200); [X,Y,Z] = ndgrid(x,y,z); U = Ufun(X,Y,Z); V = Vfun...

1 day ago | 0

Answered

how to find rows and columns without using size

[numel(prod(A,2)) numel(prod(A,1))] % prod instead of sum for a change

how to find rows and columns without using size

[numel(prod(A,2)) numel(prod(A,1))] % prod instead of sum for a change

1 day ago | 0

Answered

how to find rows and columns without using size

for 2D array p=numel(A); if p==0 try r = A(1,:); n = 0; m = numel(A*zeros(0,1)); catch ...

how to find rows and columns without using size

for 2D array p=numel(A); if p==0 try r = A(1,:); n = 0; m = numel(A*zeros(0,1)); catch ...

1 day ago | 0

Answered

how to assign the equality relationship for the elements symmetry to the diagnoal of a matrix

% random test matrix A = rand(4) % symmetrize of A by copying the lower part to upper part B = tril(A)+tril(A,-1).' for ...

how to assign the equality relationship for the elements symmetry to the diagnoal of a matrix

% random test matrix A = rand(4) % symmetrize of A by copying the lower part to upper part B = tril(A)+tril(A,-1).' for ...

2 days ago | 0

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Answered

How to add two values to a matrix each five values of that matrix in order to have a new matrix?

XY = [1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15]: r = ones(size(XY)); r(5:5:end) = 3; XYZ = repelem(XY,r) Note if ...

How to add two values to a matrix each five values of that matrix in order to have a new matrix?

XY = [1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15]: r = ones(size(XY)); r(5:5:end) = 3; XYZ = repelem(XY,r) Note if ...

2 days ago | 2

Answered

What happened to the figure toolbar in R2018b? Why is it an axes toolbar? How can I put the buttons back?

Duplicate my poste here For R2019b all the tricks found previously no longer work. I found this one does the trick set(groot,...

What happened to the figure toolbar in R2018b? Why is it an axes toolbar? How can I put the buttons back?

Duplicate my poste here For R2019b all the tricks found previously no longer work. I found this one does the trick set(groot,...

2 days ago | 1

Answered

How to set disableDefaultInteractivity for all axes?

For R2019b all the tricks found previously no longer work. I found this one does the trick set(groot,'defaultAxesCreateFcn', ....

How to set disableDefaultInteractivity for all axes?

For R2019b all the tricks found previously no longer work. I found this one does the trick set(groot,'defaultAxesCreateFcn', ....

2 days ago | 1

Answered

determine minimum from the first column values of matrix and removing the rest of the rows

[~,imin] = min(E(:,1)); G = E(imin,:)

determine minimum from the first column values of matrix and removing the rest of the rows

[~,imin] = min(E(:,1)); G = E(imin,:)

2 days ago | 0

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Answered

selecting rows from C with associated values in D, while using A and B values as references to produce E and F matrices

A = [1 2]; B = [1 3]; C = [ 1 19 18 4 3 0 0 0 0 0 0; 1 19 2 17 6 7 5 4 3 2 0; 1 16 15 17 6 7 5 4 3 2 0; ...

selecting rows from C with associated values in D, while using A and B values as references to produce E and F matrices

A = [1 2]; B = [1 3]; C = [ 1 19 18 4 3 0 0 0 0 0 0; 1 19 2 17 6 7 5 4 3 2 0; 1 16 15 17 6 7 5 4 3 2 0; ...

2 days ago | 0

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Answered

Placing annotations at specific xy coordinates

There are several tool on File Exchange, such as this one

Placing annotations at specific xy coordinates

There are several tool on File Exchange, such as this one

2 days ago | 0

Answered

C/Fortran callback to MATLAB

Not sure what you mean by "Callback". Callback to me is kind of event trigger function like an SW interruption. Anyway if you h...

C/Fortran callback to MATLAB

Not sure what you mean by "Callback". Callback to me is kind of event trigger function like an SW interruption. Anyway if you h...

2 days ago | 0

Answered

Main diagonal operations problem

Here is a method that has two advantages: without the need of Roger's FEX randfixedsum Produce matrix with rigourous uniform c...

Main diagonal operations problem

Here is a method that has two advantages: without the need of Roger's FEX randfixedsum Produce matrix with rigourous uniform c...

3 days ago | 1

Answered

Huge matrix with Nchoosek

You became real "Patient" now? Good! Then run this look at the screen and wait until it stops. If your type Ctrl C or kill MATLA...

Huge matrix with Nchoosek

You became real "Patient" now? Good! Then run this look at the screen and wait until it stops. If your type Ctrl C or kill MATLA...

3 days ago | 0

Answered

Position of the left nearest one value in a vector

v = [0 0 1 0 0 0 1 1 1 1 0 0 1 1 1 0 0 1 0] % requirement: it must start with 0 Method 1 i0=find(v==0); i1=find(v==1); [~,lo...

Position of the left nearest one value in a vector

v = [0 0 1 0 0 0 1 1 1 1 0 0 1 1 1 0 0 1 0] % requirement: it must start with 0 Method 1 i0=find(v==0); i1=find(v==1); [~,lo...

3 days ago | 1

Answered

Max function working for a sample of images but not all

Sato's example code [~,idx]=max(A,[],7) No the correct call is [~,idx]=max(A,[],3) You take the max along the third dimensio...

Max function working for a sample of images but not all

Sato's example code [~,idx]=max(A,[],7) No the correct call is [~,idx]=max(A,[],3) You take the max along the third dimensio...

3 days ago | 0

| accepted

Answered

kron function application but in 3d

A(:,:,1)= [1 2; 3 4]; A(:,:,2)=[5 6; 7 8] B = repelem(A,1,2,2)

kron function application but in 3d

A(:,:,1)= [1 2; 3 4]; A(:,:,2)=[5 6; 7 8] B = repelem(A,1,2,2)

4 days ago | 0

Answered

How to use a 2D index to create a 3D array from a 4D array?

It's amazing you all ask the same question, it must have some competition somewhere in the world (china?) about the topic of pro...

How to use a 2D index to create a 3D array from a 4D array?

It's amazing you all ask the same question, it must have some competition somewhere in the world (china?) about the topic of pro...

4 days ago | 1

Answered

how can i add two matrix vertically with different column

I would do with the old well-served for-loop C={A B}; % put the list of your matrices here m=cellfun('size',C,1); n=cellfun...

how can i add two matrix vertically with different column

I would do with the old well-served for-loop C={A B}; % put the list of your matrices here m=cellfun('size',C,1); n=cellfun...

4 days ago | 1

Question

deprecated javacomponent and javaframe

Starting from R2019b we are warned that javacomponent and javaframe property will be removed. This is a bad news for me (and I ...

4 days ago | 0 answers | 2