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How to create a GUI
Partly inspired by Adam's comment, I created a class wrapping a GUI as an answer to this question. This example contains a radio...

6年以上前 | 2

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Pass input data obtained from GUI to .m
I think it makes more sense to wrap this GUI in a class, so the class object remains after closing the GUI, which would allow yo...

6年以上前 | 0

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How to skip text lines in a .dat file
When the automatic tools fail, it is generally the easiest to fall back to doing it yourself: Read the file as text (e.g. with ...

6年以上前 | 0

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Error using ' during Transpose 3D variable from .nc file (error: "Transpose on ND array is not defined. Use PERMUTE instead.")
I suspect you don't want to interpolate, but you just want to flip the first two dimensions. In that case you can just listen to...

6年以上前 | 0

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Fill box plots with different colors
It looks like g is just a sorted copy of month and x is DIC sorted by month, so why not avoid the numbered variables and use the...

6年以上前 | 0

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You will be estimating the number of swaps required for a list that is X=100, 200, 300, ..., 900, and 1000 numbers long. In other words, you will calculate an average for each number from 100 to 1000 in steps of 100. Each average should be calculat
You probably want to use randperm to generate the random list. If you don't want to, you should preallocate the x vector and fil...

6年以上前 | 0

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"Undefined function for input arguments of type 'char'" but the function is designed to take chars.
Generally the errors for functions that you have written yourself will not be this descriptive, unless you make them this descpr...

6年以上前 | 2

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If a variable holds a bunch of images, what does (:, :, 1, i) mean?
In the case of a 3D array, the last dimension is generally the z direction, although it can also be the different color channels...

6年以上前 | 0

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Add legend to multiple plots created by a for loop
There are two ways to do this. Either you need to create an array of the handles to the scatter objects and use that in your cal...

6年以上前 | 0

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Help with centralling text values above a Bar Chart with side by side data
Find the x position of the bar itself and use that in your call to text. Then you can set the HorizontalAlignment to center.

6年以上前 | 0

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How to apply thresholding at different parts of an image?
What you describe is a region growing algorithm, of which you can find an implementation <https://www.mathworks.com/matlabcentra...

6年以上前 | 0

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How to add white space to the left and right of my plot?
Use the axis function to set your axis limits, or use the xlim function to set the XLim property of your axes object.

6年以上前 | 0

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Is this a valid expression?
You can't index the output of the transpose function like that. You can either do it explicitly in multiple steps, or use the fu...

6年以上前 | 0

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How to obtain a square matrix from a column matrix
So like this? AA=repmat(A,1,9);

6年以上前 | 0

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need help to plot a mesh
Use meshgrid to generate the full grid of combinations of x and alpha. Then you can use the surf function.

6年以上前 | 0

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question on triangulate() function
I don't see any reason why it would matter (as long as you use the same coordinate system for both inputs and the stereoParamete...

6年以上前 | 0

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Is it possible to print hard copy of PDF file using MATLAB
If you can manage to read the pdf in Matlab and make it your current figure, you can actually use the print function. See this p...

6年以上前 | 0

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How can a particular .tif file be read from a folder which is having 10 files with different suffix like 'file_1', 'file_2'...?I only want to read file_2.tif and file_4.tif.
You can generate the list of file names with dir: filelist=dir(fullfile(folder,'*_*.tif')); Now you can optionally loop throug...

6年以上前 | 0

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How can I see the all results at the same time according to changing values in a "for" loop?
Store the results in an array. Don't use numbered variables, you will either have to type them out (increasing the risk of typos...

6年以上前 | 0

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why is my code ignoring my while loop
You shouldn't use logical arrays as your conditional. It will never do what you think it does. This is what it does: IF=@(cond)...

7年弱前 | 0

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import data and plat a 3D
No interpollation required, just a conversion to a 2D matrix. You can adapt the syntax of accumarray if you do have any missing ...

7年弱前 | 1

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Calling a function defined in a m-file from within appdesigner app, with the app object as function input
Your GUI (like all AppDesigner GUIs) has a pass-by-reference behavior (so it behaves like a handle class). That means the line y...

7年弱前 | 1

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Saving/loading large images fast
I think it would be faster to load the data and recreate the figure. In general savefig only makes sense if you have a large num...

7年弱前 | 0

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Combine 2 images vertically
Like this? Im2=cat(1,im_upper,im_lower);

7年弱前 | 0

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hex2num can't recover value from the hex by num2hex
As the documentation explains, hex2num assumes the hex is a representation of a double, while num2hex also supports the single d...

7年弱前 | 0

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Selection of roi for multiple images
If you want to apply the same ROI to all images: export the ROI as a logical array. If you want to select a different ROI for...

7年弱前 | 1

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How to make program window and figure centered using GUI and varargout = guidefunc(action, varargin).
Since it apparently solved your issue, I'll move my comment to the answer section: As you can see in the first screenshot the U...

7年弱前 | 0

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how can i put a limitation rules for below codes?
With logical indexing it is easy to remove impossible values: Pmax= 3600; Pmin=0; Pch=[2600 2750 2800 2950 3010 3100 3300 3...

7年弱前 | 0

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Error using fprintf when copying cell content into a text file
The code below works, but it is probably better to define your FormatSpec in such a way that you can print your data line by lin...

7年弱前 | 1

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Divide the matrix randomly, based on columns
You mean like this? fractions=[70 15 15]; x=rand(78000,100);%use 100 to show the split is indeed 75:15:15 groups=cell(size(...

7年弱前 | 0

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