Answered

How to kill all figure windows in MATLAB?

Update close all force % or close('all','force') In R2016a, Matlab introduced uifigure which has hidden handles by default s...

How to kill all figure windows in MATLAB?

Update close all force % or close('all','force') In R2016a, Matlab introduced uifigure which has hidden handles by default s...

2 months ago | 0

Answered

plotting confidence interval and creating second axis in one plot

Here's a demo that should get you started. The alignment of y=0 on the right axis with the first data point at "x" is done at ...

plotting confidence interval and creating second axis in one plot

Here's a demo that should get you started. The alignment of y=0 on the right axis with the first data point at "x" is done at ...

2 months ago | 0

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Answered

How to binning 2-d data ?

This approach uses repelem() to generate group IDs by rows. data is the input matrix. nRows specifies the number of consec...

How to binning 2-d data ?

This approach uses repelem() to generate group IDs by rows. data is the input matrix. nRows specifies the number of consec...

2 months ago | 0

Answered

App Designer. Should I use app functions or external fuctions?

> I noticed that the "same" operations are now much slower and crashing more often than when I was not using the App designer, s...

App Designer. Should I use app functions or external fuctions?

> I noticed that the "same" operations are now much slower and crashing more often than when I was not using the App designer, s...

2 months ago | 1

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Answered

Remove trailing zeros while making matrix

When combining real and compex numbers within a single array, the array will appear in compex format. Here are some ways to form...

Remove trailing zeros while making matrix

When combining real and compex numbers within a single array, the array will appear in compex format. Here are some ways to form...

2 months ago | 0

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Answered

How to return an array without points in the edge?

Use the logical outputs to the inpolygon function. [in,on] = inpolygon (kn, xq ,xv, yv); on indicates all data that are on the...

How to return an array without points in the edge?

Use the logical outputs to the inpolygon function. [in,on] = inpolygon (kn, xq ,xv, yv); on indicates all data that are on the...

2 months ago | 0

Answered

Figure in a tab group in app designer

> is there any other reason to call 'm' files instead of just putting the code in that callback? IMO there are 2 reasons to c...

Figure in a tab group in app designer

> is there any other reason to call 'm' files instead of just putting the code in that callback? IMO there are 2 reasons to c...

2 months ago | 0

Answered

How to find the intersection a root locus plot and a line with specific angle?

There may be an analytical approach that would be better than this approach but one way to do it is to get the handle of the blu...

How to find the intersection a root locus plot and a line with specific angle?

There may be an analytical approach that would be better than this approach but one way to do it is to get the handle of the blu...

2 months ago | 0

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Answered

How to make vertical stripes line contour plot?

dt = datetime(01,01,2000) + calmonths(0:59); % row vector vals = rand(size(dt))*6-3; % vector (row or col) plot(dt,vals,'ks') ...

How to make vertical stripes line contour plot?

dt = datetime(01,01,2000) + calmonths(0:59); % row vector vals = rand(size(dt))*6-3; % vector (row or col) plot(dt,vals,'ks') ...

2 months ago | 0

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Answered

How can i plot a boundary line in contour plot

Copy of original code with the following changes. contour(k_x,k_y,g,500) chaanged to contour(k_x,k_y,real(g),500) Commented...

How can i plot a boundary line in contour plot

Copy of original code with the following changes. contour(k_x,k_y,g,500) chaanged to contour(k_x,k_y,real(g),500) Commented...

2 months ago | 0

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Answered

How to avoid clearing workspace in MATLAB App button ?

> I want it should work on matlab workspace . Bad idea. This defeats the purpose of an app which is to allow users to interact...

How to avoid clearing workspace in MATLAB App button ?

> I want it should work on matlab workspace . Bad idea. This defeats the purpose of an app which is to allow users to interact...

2 months ago | 0

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Answered

polarplot app.panel with condition in app designer

I think the problem is that you're not specifying the axes but that doesn't explain why a blue dot appears and you should have s...

polarplot app.panel with condition in app designer

I think the problem is that you're not specifying the axes but that doesn't explain why a blue dot appears and you should have s...

2 months ago | 0

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Answered

my plot won't show graph

That's because there's only 1 point and it takes >=2 points to form a line. By default, plot() does not show markers, only line...

my plot won't show graph

That's because there's only 1 point and it takes >=2 points to form a line. By default, plot() does not show markers, only line...

2 months ago | 1

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Answered

How to create a secondary Cartesian coordinate system (three perpendicular coordinate axes) in Matlab?

To add the additional axis lines, box on % Or box(ax, 'on') % ax is the axis handle but I didn't understand this part: w...

How to create a secondary Cartesian coordinate system (three perpendicular coordinate axes) in Matlab?

To add the additional axis lines, box on % Or box(ax, 'on') % ax is the axis handle but I didn't understand this part: w...

2 months ago | 1

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Answered

How to use logical indexing for slices of a 3D matrix

nxm logical index applied to all pages of a 3D array domain = rand(4,4,4); condition1 = domain(:,:,1).*ones(size(domain)) > 0....

How to use logical indexing for slices of a 3D matrix

nxm logical index applied to all pages of a 3D array domain = rand(4,4,4); condition1 = domain(:,:,1).*ones(size(domain)) > 0....

2 months ago | 0

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Answered

How to get values from multiple columns based on the values of one column ?

This is how I imagine your data are organized based on your description. % [year, month, data, ...] data = [repelem((2007:2...

How to get values from multiple columns based on the values of one column ?

This is how I imagine your data are organized based on your description. % [year, month, data, ...] data = [repelem((2007:2...

2 months ago | 0

Answered

how can I read the number in figure(matlab) without rounding?

This is a precision issue with datatips. See this answer to learn how to specify the level of precision in datatips. Demo of ...

how can I read the number in figure(matlab) without rounding?

This is a precision issue with datatips. See this answer to learn how to specify the level of precision in datatips. Demo of ...

2 months ago | 1

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Answered

highlight different data on the same graph

It looks like you're using datetime values and if you're not, you should be. Datetime values are not represented by strings. A ...

highlight different data on the same graph

It looks like you're using datetime values and if you're not, you should be. Datetime values are not represented by strings. A ...

2 months ago | 1

Answered

cell2mat -> operation -> mat2cell : How...?

for i=1:301 % generate the cell array example dataset u{1,i}=rand(41,50); end u_3d = cat(3,u{:}); u_3dFilt = medfilt3...

cell2mat -> operation -> mat2cell : How...?

for i=1:301 % generate the cell array example dataset u{1,i}=rand(41,50); end u_3d = cat(3,u{:}); u_3dFilt = medfilt3...

2 months ago | 0

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Answered

unable to make invisible for edit box in gui.

> when users choose radiobutton1, this edit box should be invisible Then you need to move your line of code from the edit1_Call...

unable to make invisible for edit box in gui.

> when users choose radiobutton1, this edit box should be invisible Then you need to move your line of code from the edit1_Call...

2 months ago | 0

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Answered

How can I get the sums of all possible combinations of the values of a vector?

% Input: v, a row or column vector v = [2 4 6 8]; % create permutations and summation results n = numel(v); vIdx = 1:...

How can I get the sums of all possible combinations of the values of a vector?

% Input: v, a row or column vector v = [2 4 6 8]; % create permutations and summation results n = numel(v); vIdx = 1:...

2 months ago | 0

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Answered

Create output of rectangles with 200 different colours

rectangle('Position',pos) pos is a 1x4 vector defining [LeftSide, BottomSide, Width, Height]. See the FaceColor and EdgeColor...

Create output of rectangles with 200 different colours

rectangle('Position',pos) pos is a 1x4 vector defining [LeftSide, BottomSide, Width, Height]. See the FaceColor and EdgeColor...

2 months ago | 0

Answered

xcorr can't be used

xcorr does not require Signal Processing Toobox in Matlab R2019a and later. For Matlab releases prior to 19a,, you'll need th...

xcorr can't be used

xcorr does not require Signal Processing Toobox in Matlab R2019a and later. For Matlab releases prior to 19a,, you'll need th...

2 months ago | 0

Answered

How to control the pushbutton in a while loop in Matlab GUI

> I would like to run the loop each time only when I click the pushbutton. I don't know whether you're using app designer, GUI...

How to control the pushbutton in a while loop in Matlab GUI

> I would like to run the loop each time only when I click the pushbutton. I don't know whether you're using app designer, GUI...

2 months ago | 1

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Answered

What is the fastest way to find zeros and ones indices in a 3D binary array?

Here are two versions of your code that are faster than the original but they only shave off a sliver of time. I've timed 10 re...

What is the fastest way to find zeros and ones indices in a 3D binary array?

Here are two versions of your code that are faster than the original but they only shave off a sliver of time. I've timed 10 re...

2 months ago | 0

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Answered

Count frequencies of occurence using both text and number

Use groupsummary % Produce table % I use categorical variables but you can you strings or char-vectors rng('default') % for r...

Count frequencies of occurence using both text and number

Use groupsummary % Produce table % I use categorical variables but you can you strings or char-vectors rng('default') % for r...

2 months ago | 0

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Answered

Dot indexing is not supported for variables of this type.

> I am trying to recursively search directories and build a list of paths to image files Inputs: % Define the main directory...

Dot indexing is not supported for variables of this type.

> I am trying to recursively search directories and build a list of paths to image files Inputs: % Define the main directory...

2 months ago | 1

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Answered

How can you sum up all vectors from a quiver plot?

This solution computes the vector sum of all quiver vectors in the test image and then computes the 95% confidence interval (CI...

How can you sum up all vectors from a quiver plot?

This solution computes the vector sum of all quiver vectors in the test image and then computes the 95% confidence interval (CI...

2 months ago | 0

Submitted

Example: Dashcam optic flow using Computer Vision Toolbox

A brief description of the steps needed to produce an optic flow field from dashcam footage using Matlab's Computer Vision Toolb...

2 months ago | 2 downloads |

Answered

Want to remove one plot from the two plots in my app designer pannel when i choose Synthesis

A simple and efficient solution would be to assign the lower plot to a uipanel in app designer and to set the visibility of the ...

Want to remove one plot from the two plots in my app designer pannel when i choose Synthesis

A simple and efficient solution would be to assign the lower plot to a uipanel in app designer and to set the visibility of the ...

2 months ago | 1