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...

6 mois 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 ...

6 mois 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.

6 mois 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.

6 mois 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);

6 mois 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 ...

6 mois 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)); ...

6 mois 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);

6 mois 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...

6 mois 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...

environ un an 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)');

environ un an 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)

environ un an 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].

environ un an 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...

environ un an 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

environ un an 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.

environ un an 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)

environ un an 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);

presque 2 ans 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...

presque 2 ans 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...

presque 2 ans 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...

presque 2 ans 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...

presque 2 ans 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...

presque 2 ans 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:...

presque 2 ans 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))';

presque 2 ans ago | 1

Answered

Search specific layer of multidimensional matrix for range of values?

idx2 = ismember(N(:,:,2), dx); idx3 = ismember(N(:,:,3), dx);

Search specific layer of multidimensional matrix for range of values?

idx2 = ismember(N(:,:,2), dx); idx3 = ismember(N(:,:,3), dx);

presque 2 ans ago | 0

| accepted

Answered

How do I change the orientation of a marker randomly?

You have to draw two crossing lines of a random angle. You cannot change the orientation of Matlab's markers. The following f...

How do I change the orientation of a marker randomly?

You have to draw two crossing lines of a random angle. You cannot change the orientation of Matlab's markers. The following f...

presque 2 ans ago | 0

Answered

Why does "find" command fail to find a number in this vector?

You can use find(round(100*v) == 24) The reason that the straight-forward approach does not work is the representation ...

Why does "find" command fail to find a number in this vector?

You can use find(round(100*v) == 24) The reason that the straight-forward approach does not work is the representation ...

presque 2 ans ago | 0