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How can I color a (circle) area in a scatterplot?
doc scatter shows a 4-argument syntax which allows you to include a vector of colours of equal length to the x and y. So y...

7年以上前 | 0

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Why did I get the same value from radio button in a buttongroup?
You are always asking for the Selected object's 'Value'. This will always return 1 because it is the selected object. You sh...

7年以上前 | 0

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GUIDE - How to use variables that are calculated in Button 1, in Button 2?
<https://uk.mathworks.com/help/matlab/creating_guis/share-data-among-callbacks.html> This gives various different methods and...

7年以上前 | 0

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Find indices of points in meshgrid-like data
[~, index] = ismember( A, [X(:) Y(:)], 'rows' ); Not sure if that is any faster than a loop though. ismember is not a very...

7年以上前 | 0

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How to reshape a cell array ?
cellfun( @(x) x + zeros( 95, 1 ), ESS_estimated_schedule, 'UniformOutput', false ); It seems like rather large replication ...

7年以上前 | 0

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How to Change the Fill Color of the Box in a Box Plot?
Unfortunately boxplot seems to be one of those unpleasant plotting functions that returns nothing and gives you no easy way to c...

7年以上前 | 1

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how do i change units of xaxis and yaxis without changing the plot??
If you are using a sufficiently new Matlab then you can use hAxes.XAxis.Exponent = 0; for an axes handle, hAxes, to get ...

7年以上前 | 0

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How to catch warnings?
<https://undocumentedmatlab.com/blog/trapping-warnings-efficiently> may help with this. Credit to Guillaume from <https://uk...

7年以上前 | 4

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Determining whether an angle is between two other angles
RayCat = sign( az_ray - mod( gamma1, 360 ) ) == sign( mod( gamma2, 360 ) - az_ray ); looks like it would do the job.

7年以上前 | 1

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how to insert the workspace near the editor?
On the Home ribbon there is a 'Layout' dropdown list about 2/3 of the way along. Tick 'Workspace' on its list and then you can ...

7年以上前 | 1

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Scrollable checkboxes inside uipanel GUIDE
You can't do it with a simple Matlab component, but you can use 3rd party scrollable panels or write your own if you really want...

7年以上前 | 0

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How to divide every column of an array with another column of the same length?
res = Y ./ S;

8年弱前 | 1

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How do I color points from scatter3 (3D scalar field), in accordance with their scalar values?
I don't have time to give full code, but the first option gives you what you need - i.e a single scatter3 instruction, not a mas...

8年弱前 | 1

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How to show all decimals in axis?
ax.YAxis.Exponent = 0; should do this if you have a sufficiently recent version of Matlab.

8年弱前 | 0

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How to make a box for comments in Matlab GUI?
uicontrol ( ... 'Units', 'pixels',... 'Position', [0 0 200 200],... 'Style','edit',... 'FontName', 'arial'...

8年弱前 | 0

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Cannot Break A Function Loop With GUI Button
The attached files give an example of a start-stop GUI which works relatively simply. Don't use global variables to pass data a...

8年弱前 | 0

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How to vary the color according to the data ?
<https://uk.mathworks.com/matlabcentral/answers/5042-how-do-i-vary-color-along-a-2d-line This answer> may help.

8年弱前 | 0

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Why do nested means give different answers depending on which dimension is averaged first
It is just rounding errors. When I tried your code the offsets were of the order of 1e-16, which is close enough to 0 as to mak...

8年弱前 | 1

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tmp_1(tmp_2 > 0) What does this command mean in Matlab?
tmp_2 > 0 is a logical result of the same size as tmp_2 which is true where tmp_2 is greater than 0 and false otherwise. ...

8年弱前 | 0

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Most efficient way to generate an array around a central value
[ flip( center:-stepsize:lower ), ( center + stepsize ):stepsize:upper ]; looks like it would work, though I haven't tested...

8年弱前 | 0

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Matrix dimensions must be agree
size( repmat(x, [m 1]) ) size( repmat(mu, [1 n]) ) on the command line will quickly show you the problem. The first is ...

8年弱前 | 0

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Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 1-by-2.
Your timestep function returns this: Population_variables=[C,V]; Yet you call it twice as: V = timestep(C,V,delta_t...

8年弱前 | 0

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phase value are in range of 0 to pi. how can i convert them to range of 0-256
Surely just the obvious: result = input * 256 / pi; works? Where obviously input is your data from 0-pi and result is w...

8年弱前 | 0

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plot the relationship between function and specific variable
a=0.2; b=0.3; thada= 0.1:1:20 tf = zeros( size( theta ) ); for n = 1:numel( thada ) t=[1+(((thada( n...

8年弱前 | 0

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Convert structure to vector
vertcat( M.vector )

8年弱前 | 2

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Getting "Subscript indices must either be real positive integers or logicals" error from simple calculation
You can just do an online search for floating point arithmetic or similar phrases and you will get links like, e.g <https://e...

8年弱前 | 0

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How i create a matrix from a nested loop?
A = zeros( 25, 2 ); for i=1:5 for j=1:5 idx = 5 * ( i - 1 ) + j; A(idx,:) =[i, j]; end ...

8年弱前 | 0

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why can't i plot 2d graph with this equation ? Can anyone help me with this ? thank you.
y is a scalar, x is a vector. y needs to be the same size as x to see a meaningful plot. Alternatively you need to give a mark...

8年弱前 | 0

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Save a matrix in MATLAB
save( filename, 'matrixName' ) e.g. myMatrix = rand( 100, 100 ); filename = 'C:\Stuff\Somefile.mat'; save( f...

8年弱前 | 0

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What those permute numbers mean?
They are the order of permutation of the dimensions, as described in doc permute So after the permutation what was the 3...

8年弱前 | 0