Answered

How can I generate random number between 1 and 10, and at the same time I want to exclude number 3 & 6?

x = setdiff(1:10, [3, 6]); r = x(randi(numel(x)));

How can I generate random number between 1 and 10, and at the same time I want to exclude number 3 & 6?

x = setdiff(1:10, [3, 6]); r = x(randi(numel(x)));

2 days ago | 0

Answered

using 2 indexs for loop

for i=1:length(mHome) for k=1:2:size(mHome,2)-1 output1(i,k)=pdist([mHome(i,k:k+1);mBall(i,1:2)]); end end

using 2 indexs for loop

for i=1:length(mHome) for k=1:2:size(mHome,2)-1 output1(i,k)=pdist([mHome(i,k:k+1);mBall(i,1:2)]); end end

2 days ago | 0

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Answered

I keep getting undefined function when preallocating

index = 1:30; % Preallocate S1QAmb = zeros(size(index)); % index has to be defined before it can be used for i = index S...

I keep getting undefined function when preallocating

index = 1:30; % Preallocate S1QAmb = zeros(size(index)); % index has to be defined before it can be used for i = index S...

1 month ago | 0

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Answered

How to save the output of a loop with sequential file numbers.

for i:size(bounding_box, 1) face_crop = imcrop(I, [227,227]) filename = sprintf('%02d.jpg', 2*i - 1); imwrite(fac...

How to save the output of a loop with sequential file numbers.

for i:size(bounding_box, 1) face_crop = imcrop(I, [227,227]) filename = sprintf('%02d.jpg', 2*i - 1); imwrite(fac...

1 month ago | 0

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Answered

Common legend for multiple histograms in subplots

Set the FaceColor explicitly before calling legend: set(line1, 'FaceColor', 'r') set(line2, 'FaceColor', 'g') set(lin...

Common legend for multiple histograms in subplots

Set the FaceColor explicitly before calling legend: set(line1, 'FaceColor', 'r') set(line2, 'FaceColor', 'g') set(lin...

8 months ago | 0

Answered

how to create a video with a looming stimulus

This version works without exporting. In the code you can first choose 'test' to see if the sequence of images is what you want ...

how to create a video with a looming stimulus

This version works without exporting. In the code you can first choose 'test' to see if the sequence of images is what you want ...

8 months ago | 0

Answered

Incorrect number of output arguments for 'pre_test_fixpt'. Expected 1, but found 2.

You show code for pre_test, but the error is about pre_test_fixpt. Have a look at how you call this function in your code.

Incorrect number of output arguments for 'pre_test_fixpt'. Expected 1, but found 2.

You show code for pre_test, but the error is about pre_test_fixpt. Have a look at how you call this function in your code.

8 months ago | 0

Answered

Why am I getting two different plots for the exact same matrix?

Maybe it helps if you transpose the matrix to get it right.

Why am I getting two different plots for the exact same matrix?

Maybe it helps if you transpose the matrix to get it right.

8 months ago | 0

Answered

Converting third dimension of 3D matrix to 1xN object

struct(ii).Image = A(:,:,ii);

Converting third dimension of 3D matrix to 1xN object

struct(ii).Image = A(:,:,ii);

8 months ago | 0

Answered

here I am trying to get the random matrix with the elements only 1 and 0 where none of columns and rows can be 0 only and also the number of 0s and 1s should be in a percentage of 30% and 70%.

N=5; % size ok = false; maxiter = 1000; i = 1; while ~ok & i < maxiter ...

here I am trying to get the random matrix with the elements only 1 and 0 where none of columns and rows can be 0 only and also the number of 0s and 1s should be in a percentage of 30% and 70%.

N=5; % size ok = false; maxiter = 1000; i = 1; while ~ok & i < maxiter ...

8 months ago | 1

Answered

Setting certain pixels in a grayscale image to RGB (red) for MIP

From the above discussion, I came up with this solution: % fake some data X = rand(10, 10, 23); N = prod(size(X)); ...

Setting certain pixels in a grayscale image to RGB (red) for MIP

From the above discussion, I came up with this solution: % fake some data X = rand(10, 10, 23); N = prod(size(X)); ...

8 months ago | 1

Answered

Calculate weighted average of a 2D matrix

X = rand(376, 481); w = rand(1, size(X, 2)); Xw = bsxfun(@times, X, w); m = mean(Xw, 2);

Calculate weighted average of a 2D matrix

X = rand(376, 481); w = rand(1, size(X, 2)); Xw = bsxfun(@times, X, w); m = mean(Xw, 2);

8 months ago | 0

Answered

How to make axis invisible? But not xlabel and ylabel!

The trick is to create handles to the labels and use these handles to re-set the color of the labels after the color of the axes...

How to make axis invisible? But not xlabel and ylabel!

The trick is to create handles to the labels and use these handles to re-set the color of the labels after the color of the axes...

8 months ago | 0

Answered

i want code to convert image to text

You can use deep learning networks from the neural networks toolbox: nnet = alexnet; % Load pretrain...

i want code to convert image to text

You can use deep learning networks from the neural networks toolbox: nnet = alexnet; % Load pretrain...

1 year ago | 0

Answered

interpolating Sample data to finer increment

Vq = interp2(X,Y',Weights, -17.5:0.5:17.5, (-15:0.25:15)');

interpolating Sample data to finer increment

Vq = interp2(X,Y',Weights, -17.5:0.5:17.5, (-15:0.25:15)');

1 year ago | 0

| accepted

Answered

How to set the y-axis values to be only integers?

plot(x) a = axis; axis([a(1) a(2) 0 4]); set(gca, 'YTick', 0:4)

How to set the y-axis values to be only integers?

plot(x) a = axis; axis([a(1) a(2) 0 4]); set(gca, 'YTick', 0:4)

1 year ago | 0

| accepted

Answered

what is the difference between double and im2 double?

im2double converts to double and rescales the image to [0, 1].

what is the difference between double and im2 double?

im2double converts to double and rescales the image to [0, 1].

1 year ago | 0

| accepted

Answered

Finding out values for elements of an array from corresponding array elements?

You can represent your weights as a matrix using NaN for the diagonal elements that do not exist: Weights = [NaN, 0.79,0.31...

Finding out values for elements of an array from corresponding array elements?

You can represent your weights as a matrix using NaN for the diagonal elements that do not exist: Weights = [NaN, 0.79,0.31...

1 year ago | 0

| accepted

Answered

Question about plotting/vectors

When x is a vector you have to use element-wise multiplication and division sigmax=(F/(pi*R))-((4*F*R.*x.^2)./(pi.*K)).*C

Question about plotting/vectors

When x is a vector you have to use element-wise multiplication and division sigmax=(F/(pi*R))-((4*F*R.*x.^2)./(pi.*K)).*C

1 year ago | 1

| accepted

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

1 year ago

Answered

Resacaling an array to align and plot beside another

x = 1:600; A = rand(1, 600); y = 1:2:600; B = rand(1, 300); plot(x, A, y, B)

Resacaling an array to align and plot beside another

x = 1:600; A = rand(1, 600); y = 1:2:600; B = rand(1, 300); plot(x, A, y, B)

1 year ago | 0

Answered

how to use LUT form configuring matrix

Use your matrix as index to LUT: Mnew = LUT(M);

how to use LUT form configuring matrix

Use your matrix as index to LUT: Mnew = LUT(M);

2 years ago | 0

Answered

need to gray-rgb transforming

The idea is to convert a color map to an RGB image stripe of size 1 x N, where N is the number of entries in the colormap, and t...

need to gray-rgb transforming

The idea is to convert a color map to an RGB image stripe of size 1 x N, where N is the number of entries in the colormap, and t...

2 years ago | 0

Answered

How can I extract all matrix element neighbors ?

You have to ensure that the indices are always valid, i.e., between 1 and the maximum number of rows / columns. For example, wha...

How can I extract all matrix element neighbors ?

You have to ensure that the indices are always valid, i.e., between 1 and the maximum number of rows / columns. For example, wha...

2 years ago | 0

Answered

Citing MATLAB Optimization Toolbox (BibTex reference)

I would use something like this @misc(MatlabOTB, key = {MATLAB Optimization Toolbox}, title = {MATLAB Optimizatio...

Citing MATLAB Optimization Toolbox (BibTex reference)

I would use something like this @misc(MatlabOTB, key = {MATLAB Optimization Toolbox}, title = {MATLAB Optimizatio...

2 years ago | 2

| accepted

Answered

How can I repeatedly put a function result into itself, and get a matrix of the results?

N = 500; Y = zeros(1, N); % preallocate for speed Y(1) = myfun(1); for i = 2:N Y(i) = myfun(Y(i-1); end with my...

How can I repeatedly put a function result into itself, and get a matrix of the results?

N = 500; Y = zeros(1, N); % preallocate for speed Y(1) = myfun(1); for i = 2:N Y(i) = myfun(Y(i-1); end with my...

2 years ago | 0

Answered

How to add a string to a filename while saving plots

name = 'test'; Either newname = [name, '_angle']; or newname = strcat(name, '_angle'); or, as Stephen...

How to add a string to a filename while saving plots

name = 'test'; Either newname = [name, '_angle']; or newname = strcat(name, '_angle'); or, as Stephen...

2 years ago | 0

Answered

Matching x-axis when two plots's axes are multiple of each other

With the x value of the bar command you can plot the two graphs on top of each other, as you initially intended: x = (0:20:...

Matching x-axis when two plots's axes are multiple of each other

With the x value of the bar command you can plot the two graphs on top of each other, as you initially intended: x = (0:20:...

2 years ago | 0

Answered

How to get the index of maximum value in each row of a matrix?

[~, q] = max(A, [], 2) ; p = (1:size(A, 1))';

How to get the index of maximum value in each row of a matrix?

[~, q] = max(A, [], 2) ; p = (1:size(A, 1))';

2 years ago | 1