Answered

Unable to perform assignment because brace indexing is not supported for variables of this type.

At the bottom of your loop you have data = data{i}; That replaces the cell array data that contains the cell with framegra...

Unable to perform assignment because brace indexing is not supported for variables of this type.

At the bottom of your loop you have data = data{i}; That replaces the cell array data that contains the cell with framegra...

43 minutes ago | 0

| accepted

Answered

How to deploy my code on raspberry pi as a standalone?

It is not possible to deploy CNN training to hardware. It is not possible to deploy augmentedImageDatastore to hardware. Your ...

How to deploy my code on raspberry pi as a standalone?

It is not possible to deploy CNN training to hardware. It is not possible to deploy augmentedImageDatastore to hardware. Your ...

1 hour ago | 0

Answered

Using fsolve function, I want to get only real positive roots.

You cannot constrain range to positive in fsolve(). You can add an option that will cause fsolve() to stop processing if it enc...

Using fsolve function, I want to get only real positive roots.

You cannot constrain range to positive in fsolve(). You can add an option that will cause fsolve() to stop processing if it enc...

1 hour ago | 1

Answered

How to save a symbolic equation in a txt file?

If you plan to use the expression inside a numeric solver, you should use matlabFunction(), which has the advantage of convertin...

How to save a symbolic equation in a txt file?

If you plan to use the expression inside a numeric solver, you should use matlabFunction(), which has the advantage of convertin...

1 hour ago | 1

| accepted

Answered

Can't open nii image with MATLAb R2017a

You need to install https://www.mathworks.com/matlabcentral/fileexchange/8797-tools-for-nifti-and-analyze-image Note: as of th...

Can't open nii image with MATLAb R2017a

You need to install https://www.mathworks.com/matlabcentral/fileexchange/8797-tools-for-nifti-and-analyze-image Note: as of th...

2 hours ago | 0

Answered

Solve an equation and get a solution that depends on a variable

syms Nin(t) % Vin = (sign(t - 200/11)/2 + 1/2)*((11*t)/100000 - 1/500) - (11*t)/100000 + 1/500 eq1 = Nin == Constant * Vin; s...

Solve an equation and get a solution that depends on a variable

syms Nin(t) % Vin = (sign(t - 200/11)/2 + 1/2)*((11*t)/100000 - 1/500) - (11*t)/100000 + 1/500 eq1 = Nin == Constant * Vin; s...

2 hours ago | 0

Answered

error message"Matrix index is out of range for deletion."

Consider: vector V = [1 2 -3 -4 5] . Task: delete negative elements. for K = 1 : length(V) if V(K) < 0; V(K) = []...

error message"Matrix index is out of range for deletion."

Consider: vector V = [1 2 -3 -4 5] . Task: delete negative elements. for K = 1 : length(V) if V(K) < 0; V(K) = []...

2 hours ago | 0

Answered

Error using symengine in numerical solver

syms w_r S = vpasolve(0==(1-((length(r_dc_s)^(-0.5))*(chi2inv(0.95,length(mu))))... /(1*sqrt(w_r'*V*w_r)+((length(r_dc_s)...

Error using symengine in numerical solver

syms w_r S = vpasolve(0==(1-((length(r_dc_s)^(-0.5))*(chi2inv(0.95,length(mu))))... /(1*sqrt(w_r'*V*w_r)+((length(r_dc_s)...

4 hours ago | 0

| accepted

Answered

Is it possibile combine an RGB image and an IR image in a FOUR-BAND tiff image?

Tiff class can be used. The IR can be placed into Extra Samples. I seem to recall that you can also directly write an array with...

Is it possibile combine an RGB image and an IR image in a FOUR-BAND tiff image?

Tiff class can be used. The IR can be placed into Extra Samples. I seem to recall that you can also directly write an array with...

11 hours ago | 0

Answered

How should the value of objective function be returned for fmincon?

f = sum((actual(:) - predicted(:)).^2);

How should the value of objective function be returned for fmincon?

f = sum((actual(:) - predicted(:)).^2);

15 hours ago | 0

| accepted

Answered

Solving an optimization problem in fmincon with nonlinear constraints

Warning: Matrix is singular, close to singular or badly scaled. Results may be inaccurate. RCOND = NaN. > In ode15s (line 589)...

Solving an optimization problem in fmincon with nonlinear constraints

Warning: Matrix is singular, close to singular or badly scaled. Results may be inaccurate. RCOND = NaN. > In ode15s (line 589)...

16 hours ago | 0

Answered

Complex number error (number will be an array)

Inside of [], anywhere that you have an element, followed by whitespace, followed by - or + followed immediately by an element w...

Complex number error (number will be an array)

Inside of [], anywhere that you have an element, followed by whitespace, followed by - or + followed immediately by an element w...

16 hours ago | 1

| accepted

Answered

vector uses info from itself to grow without for cycle

function A = calculate_A(n) if n == 1 A = 1/2; else A_before = calculate_A(n-1); A = [A_before; (...

vector uses info from itself to grow without for cycle

function A = calculate_A(n) if n == 1 A = 1/2; else A_before = calculate_A(n-1); A = [A_before; (...

16 hours ago | 0

| accepted

Answered

how to split a string

If the current vector is shorter than N or exactly N then add the complete current vector to the end of the cell array and retur...

how to split a string

If the current vector is shorter than N or exactly N then add the complete current vector to the end of the cell array and retur...

18 hours ago | 0

Answered

To create a code that differentiate any function

fun = str2sym(input('fun= ', 's')); var = str2sym(input('which variable= ', 's')); y = diff(fun, var)

To create a code that differentiate any function

fun = str2sym(input('fun= ', 's')); var = str2sym(input('which variable= ', 's')); y = diff(fun, var)

22 hours ago | 0

Answered

Pulling data from a for loop

T = 29; % %C Tambient = 20; % C Tfilm = (T + Tambient)/2; Tskin = nan; for t = 1:1:100 k_air_2 = (2.4131 + 0.0078 * T)...

Pulling data from a for loop

T = 29; % %C Tambient = 20; % C Tfilm = (T + Tambient)/2; Tskin = nan; for t = 1:1:100 k_air_2 = (2.4131 + 0.0078 * T)...

1 day ago | 2

Answered

How to get the mean of the function?

Mean of function F over A to B is (integral of F from A to B)/(B-A)

How to get the mean of the function?

Mean of function F over A to B is (integral of F from A to B)/(B-A)

1 day ago | 0

Answered

Best way to solve my implicit equation

In an interactive session: syms any of the names corresponding to variables you will need to change. Calculate lhs(eqn)-rhs(e...

Best way to solve my implicit equation

In an interactive session: syms any of the names corresponding to variables you will need to change. Calculate lhs(eqn)-rhs(e...

1 day ago | 0

Answered

real simple -- spreadsheet parsing

You can use extractBetween() on the string array, and double() the result

real simple -- spreadsheet parsing

You can use extractBetween() on the string array, and double() the result

1 day ago | 0

| accepted

Answered

merge txt and num back again.

If you must use xlsread() then use the third output of xlsread(), often known as raw, which will be a cell in which each entry t...

merge txt and num back again.

If you must use xlsread() then use the third output of xlsread(), often known as raw, which will be a cell in which each entry t...

1 day ago | 0

Answered

functions of funtions symbolic

You cannot do that, unfortunately. symbolic functions at the MATLAB level are strictly created by evaluating a symbolic express...

functions of funtions symbolic

You cannot do that, unfortunately. symbolic functions at the MATLAB level are strictly created by evaluating a symbolic express...

1 day ago | 0

Answered

Saving and loading structural array has different format

results_loaded.results = [results_loaded.results;add]; save('results.mat', '-struct', 'results_loaded');

Saving and loading structural array has different format

results_loaded.results = [results_loaded.results;add]; save('results.mat', '-struct', 'results_loaded');

1 day ago | 0

Answered

How to divide vector to matrix(same row and column)

If you have the Communications Systems Toolbox, then buffer(TheVector, ceil(sqrt(numel(TheVector))))

How to divide vector to matrix(same row and column)

If you have the Communications Systems Toolbox, then buffer(TheVector, ceil(sqrt(numel(TheVector))))

1 day ago | 0

Answered

Updating UI figures opened during script: uifigure callback works when figure is opened from command line but not if opened from inside of a script

data = guidata(gcf); That is a callback for use with GUIDE, not for use with uifigure (which is App Designer.) 'data = guidata...

Updating UI figures opened during script: uifigure callback works when figure is opened from command line but not if opened from inside of a script

data = guidata(gcf); That is a callback for use with GUIDE, not for use with uifigure (which is App Designer.) 'data = guidata...

1 day ago | 0

| accepted

Answered

regionprops( aImage, 'Centroid', 'Image' ) vs regionprops( aImage, 'Centroid' );

Each option to regionprops() tells it another property to measure and return https://www.mathworks.com/help/images/ref/regionpr...

regionprops( aImage, 'Centroid', 'Image' ) vs regionprops( aImage, 'Centroid' );

Each option to regionprops() tells it another property to measure and return https://www.mathworks.com/help/images/ref/regionpr...

2 days ago | 0

| accepted

Answered

imread() wrong gray values

The image file is not RGB, it is an colormapped image. [img,cmap] = imread('image.png'); RGB = ind2rgb(img,cmap); imshow(RGB)...

imread() wrong gray values

The image file is not RGB, it is an colormapped image. [img,cmap] = imread('image.png'); RGB = ind2rgb(img,cmap); imshow(RGB)...

2 days ago | 0

Answered

defining a polygon area within an array

If you have the Computer Vision Toolbox, then you can use https://www.mathworks.com/help/vision/ref/insertshape.html#btppvxj-1-s...

defining a polygon area within an array

If you have the Computer Vision Toolbox, then you can use https://www.mathworks.com/help/vision/ref/insertshape.html#btppvxj-1-s...

2 days ago | 0

Answered

Curve Fitting with erfc

I was able to track this down. What is happening is that cftool likes to draw the smooth line, from before the start of the x d...

Curve Fitting with erfc

I was able to track this down. What is happening is that cftool likes to draw the smooth line, from before the start of the x d...

2 days ago | 0

| accepted

Answered

Differantation of a function with multiple unknown constants

syms h w x y z t A C1 C2; eqn = exp(x*y*t)*(C1*cos(z*t)+C2*sin(z*t)+A*cos(h*t-w)) dt = diff(eqn, t); bc1 = subs(dt, [h w x y ...

Differantation of a function with multiple unknown constants

syms h w x y z t A C1 C2; eqn = exp(x*y*t)*(C1*cos(z*t)+C2*sin(z*t)+A*cos(h*t-w)) dt = diff(eqn, t); bc1 = subs(dt, [h w x y ...

2 days ago | 1

| accepted

Answered

counting holes in an image

Invert the image so the holes become solid and the solid gets removed. Remove from that all solid touching the border -- those c...

counting holes in an image

Invert the image so the holes become solid and the solid gets removed. Remove from that all solid touching the border -- those c...

2 days ago | 0