Answered

Converting cell array to matrix

Use vertcat() coord = vertcat(centroid1{:}) following should also work coord = cell2mat(centroid1.')

Converting cell array to matrix

Use vertcat() coord = vertcat(centroid1{:}) following should also work coord = cell2mat(centroid1.')

34 minutes ago | 0

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Answered

How to make the y axis 'counts' and x axis the variable on Histograms

One option is to just rotate the view x = rand(1000,1); histogram(x) view(90, 90) Combining histcounts() with barh() is anot...

How to make the y axis 'counts' and x axis the variable on Histograms

One option is to just rotate the view x = rand(1000,1); histogram(x) view(90, 90) Combining histcounts() with barh() is anot...

42 minutes ago | 0

Answered

Infinite Recursion in own Levenberg-Marquardt Code

Inside the function korrektur, you are again calling korrektur with the same value of input parameter [s,mu]=korrektur(f,DF,x,...

Infinite Recursion in own Levenberg-Marquardt Code

Inside the function korrektur, you are again calling korrektur with the same value of input parameter [s,mu]=korrektur(f,DF,x,...

1 hour ago | 1

Answered

imwrite error for saving contents of a cell array in a for loop - "colourmap should have 3 columns"?

Why are you getting the indexed image in frame2im(). Getting an RGB image will make things easier. Change the line to figureIm ...

imwrite error for saving contents of a cell array in a for loop - "colourmap should have 3 columns"?

Why are you getting the indexed image in frame2im(). Getting an RGB image will make things easier. Change the line to figureIm ...

2 hours ago | 1

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Answered

How to Select Specific Time Intervals Over a series of time steps

Is the data loaded in MATLAB? If yes, you can do something like this dts; % datetime vector; Transp_val; % Transpiration value...

How to Select Specific Time Intervals Over a series of time steps

Is the data loaded in MATLAB? If yes, you can do something like this dts; % datetime vector; Transp_val; % Transpiration value...

2 hours ago | 0

Answered

Simulink: Excite System for couple seconds but longer simulation time

There can be several ways, but the easiest might be to use a MATLAB function block: https://www.mathworks.com/help/simulink/ug/c...

Simulink: Excite System for couple seconds but longer simulation time

There can be several ways, but the easiest might be to use a MATLAB function block: https://www.mathworks.com/help/simulink/ug/c...

2 hours ago | 0

Answered

How to plot scatter graph with colourmap functon

Try this x = myVal(:,1); y = myVal(:,2); z = myVal(:,3); cmap = jet(256); %state colourmaop min_val = min(z); max_val = ...

How to plot scatter graph with colourmap functon

Try this x = myVal(:,1); y = myVal(:,2); z = myVal(:,3); cmap = jet(256); %state colourmaop min_val = min(z); max_val = ...

2 hours ago | 0

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Answered

multiple function_handle in one function

Instead of defining three function handles, you can defined one vector-valued functions df = @(a) [2.*((sqrt((x1-a(1)).^2 + (y1...

multiple function_handle in one function

Instead of defining three function handles, you can defined one vector-valued functions df = @(a) [2.*((sqrt((x1-a(1)).^2 + (y1...

2 hours ago | 1

Answered

Use Matlab online for machine learning

MATLAB online itself does not have enough power to do something serious. For example, it does not have a GPU device. You can run...

Use Matlab online for machine learning

MATLAB online itself does not have enough power to do something serious. For example, it does not have a GPU device. You can run...

3 hours ago | 0

Answered

How to Write y(0)=1?

If you just want to display it, then you can use following code syms J(theta) J(theta)=1 This requires the Symbolic toolbox.

How to Write y(0)=1?

If you just want to display it, then you can use following code syms J(theta) J(theta)=1 This requires the Symbolic toolbox.

4 hours ago | 0

Answered

How sampling 3d scattered points

One option is to use interp1() X = rand(108, 3); t = linspace(0,1,size(X,1)); t_new = linspace(0,1,32); X_new = interp1(t,...

How sampling 3d scattered points

One option is to use interp1() X = rand(108, 3); t = linspace(0,1,size(X,1)); t_new = linspace(0,1,32); X_new = interp1(t,...

4 hours ago | 1

Answered

How to find the Fourier transform X(ω)

fourier() works with symbolic inputs syms t x(t) = (t*exp(-3*t)*sin(8*t))*heaviside(t); fourier(x)

How to find the Fourier transform X(ω)

fourier() works with symbolic inputs syms t x(t) = (t*exp(-3*t)*sin(8*t))*heaviside(t); fourier(x)

4 hours ago | 0

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Answered

How to use isosurface in app designer?

isosurface() surface is quite an old function and does not support these features. According to the documentation, it will just ...

How to use isosurface in app designer?

isosurface() surface is quite an old function and does not support these features. According to the documentation, it will just ...

4 hours ago | 0

Answered

4th order differential equation

If you have symbolic toolbox, then try this syms v(z) P EI eq = EI*diff(v,4) == -P*z v = dsolve(eq) Result from live edito...

4th order differential equation

If you have symbolic toolbox, then try this syms v(z) P EI eq = EI*diff(v,4) == -P*z v = dsolve(eq) Result from live edito...

4 hours ago | 0

Answered

Read two lines from a file and repeat for next lines

It is more efficient to read everything in a single call. I/O operations on disk can be a bottleneck, so that should be reduced ...

Read two lines from a file and repeat for next lines

It is more efficient to read everything in a single call. I/O operations on disk can be a bottleneck, so that should be reduced ...

6 hours ago | 0

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Answered

How to create a variable named from string

Although possible, it is a terrible (cannot emphasize enough) coding practice to create variable names dynamically: https://www....

How to create a variable named from string

Although possible, it is a terrible (cannot emphasize enough) coding practice to create variable names dynamically: https://www....

6 hours ago | 0

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Answered

Pseudo random sequence matrix from an image

As the documentation specifies, the Y matrix has values in the range [16 235]/255 for the floating-point datatype. You can do so...

Pseudo random sequence matrix from an image

As the documentation specifies, the Y matrix has values in the range [16 235]/255 for the floating-point datatype. You can do so...

6 hours ago | 0

Answered

Grouping of sub arrays

Are you looking for something like this x=[1 1 2 3 3 1 0 4 4 4 1 1 1 1 5 5 0 1 3 3 3 3 1 4 4 4 0 0 1 1 5 6]; Groups = bwlabe...

Grouping of sub arrays

Are you looking for something like this x=[1 1 2 3 3 1 0 4 4 4 1 1 1 1 5 5 0 1 3 3 3 3 1 4 4 4 0 0 1 1 5 6]; Groups = bwlabe...

6 hours ago | 0

Answered

How to create a graph time vs value n

I think it might be better if you move the tic ... toc lines outside the function. For example, remove these lines and then run ...

How to create a graph time vs value n

I think it might be better if you move the tic ... toc lines outside the function. For example, remove these lines and then run ...

7 hours ago | 0

Answered

How to separate negative and positive terms in to two different expressions

Try this syms a b c d f g F = a - b*d + g*c - a*c + d*g; parts = children(F); parts = [parts{:}]; assume(symvar(parts)>0)...

How to separate negative and positive terms in to two different expressions

Try this syms a b c d f g F = a - b*d + g*c - a*c + d*g; parts = children(F); parts = [parts{:}]; assume(symvar(parts)>0)...

7 hours ago | 1

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Answered

Formatting Matlab's output to Command Window

The format short only applies to native numeric datatypes, e.g., double. Generally, it is preferable to display symbolic calcula...

Formatting Matlab's output to Command Window

The format short only applies to native numeric datatypes, e.g., double. Generally, it is preferable to display symbolic calcula...

8 hours ago | 1

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Answered

MATLAB function cross can be applied to symbolic object but Documentation does not explain?

It works fine in R2020b, are you using an older release? syms x y z vec1 = [x y z]; vec2 = [x y z]; x = cross(vec1, vec2); ...

MATLAB function cross can be applied to symbolic object but Documentation does not explain?

It works fine in R2020b, are you using an older release? syms x y z vec1 = [x y z]; vec2 = [x y z]; x = cross(vec1, vec2); ...

8 hours ago | 0

Answered

how to add non uniform Noise

What about multiplying the noise matrix with another function. For example M = randn(13); [~,~,Z] = peaks(13); % peaks is just...

how to add non uniform Noise

What about multiplying the noise matrix with another function. For example M = randn(13); [~,~,Z] = peaks(13); % peaks is just...

10 hours ago | 0

Answered

Plotting 16 plots in one figure using handle graphics

Try this n = 4; dim = 0.8/n-0.05; % considering that the axes will go from 0.1 to 0.9 in figure coordinates ...

Plotting 16 plots in one figure using handle graphics

Try this n = 4; dim = 0.8/n-0.05; % considering that the axes will go from 0.1 to 0.9 in figure coordinates ...

11 hours ago | 0

Answered

Array of Numbers with error

What type of noise you you want to add? Following shows an example with normally distributed noise. acc79_18; % data from 1979 ...

Array of Numbers with error

What type of noise you you want to add? Following shows an example with normally distributed noise. acc79_18; % data from 1979 ...

11 hours ago | 0

Answered

Why is my functions not plotting a line?

Change the lines in your code like this Wcd=(s.*Wab.*(s+sin(theta)))./(1+s.^2+2.*s.*sin(theta)); %^...

Why is my functions not plotting a line?

Change the lines in your code like this Wcd=(s.*Wab.*(s+sin(theta)))./(1+s.^2+2.*s.*sin(theta)); %^...

21 hours ago | 2

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Answered

How to use two colormaps in one imagesc plot?

You can create a new colormap based on the proportion of the individual colormap imagesc(M); colorbar(); caxis([-0.8 1]); cm...

How to use two colormaps in one imagesc plot?

You can create a new colormap based on the proportion of the individual colormap imagesc(M); colorbar(); caxis([-0.8 1]); cm...

22 hours ago | 1

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Answered

Read and display RGB png/jpg image

You png file is actually an indexed image with a colormap. You can see it in color using following statements [img, map] = imre...

Read and display RGB png/jpg image

You png file is actually an indexed image with a colormap. You can see it in color using following statements [img, map] = imre...

22 hours ago | 0

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Answered

Alternatives for passing variables efficiently to anonymous function

Don't bring 'f' as string. Define it as function handle. For example, define f like this f = @(x, LDamperFL, LDamperFR, xSteerR...

Alternatives for passing variables efficiently to anonymous function

Don't bring 'f' as string. Define it as function handle. For example, define f like this f = @(x, LDamperFL, LDamperFR, xSteerR...

22 hours ago | 0

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Answered

How to use cumsum for single column matrix non integer values

It seems that you have somewhere defined a variable name 'cumsum', which confuses MATLAB by shadowing the built-in function name...

How to use cumsum for single column matrix non integer values

It seems that you have somewhere defined a variable name 'cumsum', which confuses MATLAB by shadowing the built-in function name...

24 hours ago | 0

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