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Finding the height of windows taskbar
Here is how to figure it out. First make a figure then maximize it, then look at its position. >> figure % maximize this...

13년 초과 전 | 0

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problem with jet colormap
That's what a colormap does.... >> help colormap colormap Color look-up table. colormap(MAP) sets the current ...

13년 초과 전 | 0

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help to multiply matrices in succession
% For example: C = randi(10,2,2,3) A = cumprod(C,3) Or perhaps you meant: A(:,:,1) = C(:,:,1); for ii = 2:s...

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How to remove the blue toolbar around the MATLAB figure.
figure('menubar','none')

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Specialized sorting of array while preserving order
% Your original array a = [19 21 12 -15 18 1 22 11]; % Now the method: L = length(a)/2; [~,J] = sort(a); % For ...

13년 초과 전 | 1

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Edit plot in a GUI
# What edits are you wanting the user to make? # Are you using GUIDE or an M-file?

13년 초과 전 | 0

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Need help figuring out what I am doing wrong with my graph
What is the difference between the two graphs? The spaces between the bars? The title? The boldness of the lines? Be more sp...

13년 초과 전 | 0

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What is the correct way to use arrays with function inside for loop?
If you want to hold y as a vector, then for every x(i) in the loop your function call will return a vector. You cannot store a ...

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Why won't my GUI code work!?
What is in the popup menu? To see this, take the semicolon off of the line where you retrieve the string, like this: str...

13년 초과 전 | 0

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Some issues with a basic while loop problem, help appreciated
Try this out. product=1; n=0; while product <= 500 num(n+1)=input('Enter a positive number '); ...

13년 초과 전 | 1

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Determination of y coordinate of a curve that intersects x axis ?
Where the curve intersects the x-axis, the y-coordinate is zero. No need to do anything with MATLAB.

13년 초과 전 | 1

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how to change value of xlswrite array using one-item vector
Here is an example of how to manipulate strings in a loop... Str = 'A'; for ii = 1:5 disp(sprintf('A%i',ii)) ...

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How can I plot a 3D histogram using hist3 with log scale?
x = 1:20; y = 2*x; hist3([x' y']); S = findobj('type','surf'); ZD = get(S,'zdata'); ZD(~ZD) = .1; set(S,'zda...

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Unwanted mesh overlapping with surface
set(gcf,'renderer','zbuffer') % Or painters This is yet another opengl problem...

13년 초과 전 | 1

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error checking in matlab
When asking a question, you need to explain what you post. What is m and n? Are they supposed to be the size of x, like: [m...

13년 초과 전 | 0

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move a marker from one position to another in a curve plotted in a graph
Have you considered using the data cursor? plot(1:10) datacursormode on Now click on the line then use the arrow ke...

13년 초과 전 | 0

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Plotting two loglog y-axes
AX = plotyy(x,y1,x,y2); set(AX,'yscale','log') % And maybe xscale too?

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make column in a matrix: 1,1,1,2,2,2,3,3,3 etc
A(:,2) = reshape(cumsum(ones(3,7),2),21,1); or A(:,2) = floor(linspace(1,7.7,21));

13년 초과 전 | 1

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switch function case{name}
This might be a case where a little pushbutton input GUI would be of service. For exmaple, save this as gui_input then call it ...

13년 초과 전 | 0

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what does this code mean?
It appears to be finding the ratio of the mean values of two 15 element square subarrays, each from a different array.

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Point at which max occurs
It is always a good idea to read the doc for any such question: doc max docsearch('maximum value') The two output cal...

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Replace percentage of existing values with new value
B(randperm(16,4)) = 5

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Simplifying boolean function using boolean algebra
>> syms A B C D >> simplify((1-A)*B*C*D + A*(1-B)*C*(1-D) + A*(1-B)*C*D +... A*B*(1-C)*D + A*B*C*(1-D) + A*B...

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How to get a very small value rather than 0?
Use the symbolic toolbox if you need more precision than double.

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How can I link a scroll-bar GUI with the mathematical code I have written?
Here is an example GUI that does something similar. You should be able to adapt it fairly easily... function [S] = gui_s...

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How can I make a string entered in an "Edit Text" box become a variable?
Here is one example that shows the process of manipulating data from edit boxes. function [] = gui_edits() % How to ...

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Who do I create a sequence of matrices?
This will do the job. Note that all of the matrices are there, but _they are in a different order_. You can figure out how to ...

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Create a loop which fills numbers 1-7 into matrix until matrix length reached
Andrei has shown you a preferred method. However, in answer to your original question, here is one way to solve it with a doubl...

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From 2 vectors of n elements To n points
P = [A,B]; Now point 1 is P(1,:). Point 2 is P(2,:), etc.

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Number of zeros in a matrix
The number of zeros in the matrix A is: sum(~A(:)) So we can make this a function: f = @(x) sum(~x(:)); Now test...

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