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Help with GUI callback - existence condition
You can check for the non-existence of a variable using this line: if ~exist('a','var') % Code else % ...

5년 이상 전 | 0

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Fill area under a curve
Yes there is the <http://www.mathworks.com/help/matlab/ref/area.html area> function.

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Matlab command for generating random rational numbers between -1 and 0?
Like this? a = -1; b = 0; r = a+(b-a)*rand(1,1) If you want many of them change the inputs to rand. And if you...

5년 이상 전 | 0

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How to install Global Optimization Toolbox
You need to purchase it <http://www.mathworks.com/products/global-optimization/index.html here> and then install it on your comp...

5년 이상 전 | 0

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get the actual position correspond to imfreehand
After you get the position, you can create a mask in which value inside the ROi are equal to 1 and those outside are equal to 0....

5년 이상 전 | 1

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I get bad resolution when saving my plot with filled circles as .pdf or .eps
You might want to use <http://www.mathworks.com/help/matlab/ref/print.html print> instead of save, and set the resolution to som...

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Remove certain ticks on y-axis when plotting?
You can set directly the XTick property as follows: set(gca,'YTick',1:1:SomeNumber);

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How to correct p-value in statistical analysis?
With the Statistics Toolbox you want to use <http://www.mathworks.com/help/stats/multcompare.html mutcompare> for your statistic...

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How can I measure how many pixels a single irregular object has?
If you have the Image Processing Toolbox it looks like <http://www.mathworks.com/help/images/examples/correcting-nonuniform-illu...

5년 이상 전 | 0

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Select parts of number from a cell of many numbers to put in a variable?
The easy way would be: year = YourDate(1:4) month = YourDate(5:6) day = YourDate(7:8) Then you can convert to digi...

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error when calculating factorial
The error is due to a missing bracket at the end of this line: C=factorial(m)/((factorial(n)*factorial(m-n)); Add a brac...

5년 이상 전 | 1

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Structure inside a while loop && pixel distance
Something like this? N = 10; YourStructure(N).result = zeros(15); % Initialize the structure for k = 1:N ...

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How to eliminate the rows of data ?
If your data is stored in a cell array you could use the following: % Identify the rows (I) in which there are empty elemen...

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How to Perform an Operation on a Sequence of DICOM Images
You might want to look at <http://www.mathworks.com/company/newsletters/articles/accessing-data-in-dicom-files.html this> to get...

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The max matrix of two matrices
Try this: C = arrayfun(@(x,y) max(x(:),y(:)),A,B)

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Very simple logical question
A = cell(1,1000); for k = 1:1000 A{k} = sprintf('%04d',k); end

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Show line above surf plot in 2D view
You could try to inverse the order of your axes' children after drawing the line, so that it comes up at the front and the plot ...

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creating numerical values from parts of a string read
If your strings are always of the same format, you can use regular expression to look for the colon followed by a number and fol...

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How can ı set initial value about for statement ???
Maybe with something like this: for k = 1:100 % add your code if k== 20 % add you condition...

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Getting the position of a value in a vector
YourVector = BAC(BAC_F<0.8) Then FirstValue = YourVector(1) Is that what you meant? If not it might simply be ...

5년 이상 전 | 0

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Display image inside parfor loop
I'm afraid you can't control image display inside a parfor loop, i.e. inside individual workers. However you can store all the i...

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Create new variable if elements of different variables match in Matlab
Here is something to get you started. It's not the most elegant but I think it answers your question. Note that I added NaN in s...

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How do I use regexpi on a phrase that has a "*"?
If I understood right using \* instead of * should work.

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how to manage pop up menu entries
In the pushbutton callback you can add this code to populate the popup menu through its 'String' property: set(handles.Yo...

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How to get the facecolor of each bar?
Use the handles to the bar graph to retrieve its 'FaceColor' property. Eg: hbar1 = hbar(data,SomeColor); Then you ca...

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guide push button and checkbox callback
Instead of using multiple if/else statements can you simply populate x directly with the values of the checkboxes: x = [get...

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writevideo skipping last frame
Maybe use narr_anim(m).cdata in your loop? Other than that your code looks fine to me

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How do I use a for loop to return a vector
Hi Adam, you actually don't need a loop: P = x(x > 0); N = x(x < 0); P = 6.2000 11.0000 8.1000...

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Find with an indexed struc
It might not be the most elegant but I think it would solve your problem Indices = cellfun(@(x) x == 0,struct2cell(M)) % yo...

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Open second figure from GUI
Hi Carlos, In order to open a figure (let's say an input dialog box) after selecting a checkbox, you want to write the code...

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