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Drawing on UI Axes in MATLAB app designer
Here's a simple demo app you can use to draw. After clicking the Draw button, left-click-and-drag on the axes to draw in black,...
11 hours ago | 0
Iterating over a cell array: do for loops work?
A few things: A for loop iterates over the columns of what you give it, so if you give it a column vector (cell array or otherw...
13 hours ago | 0
Could I get any help with this infinite recursion?
I suspect that the for loop with fprintf is not intended to be part of the function definition. If you move it out (and change n...
14 hours ago | 1
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looking for convoltion signal for output
t = linspace(0,10,50); x = zeros(size(t)); x(t > 0 & t < 5) = 1; h = zeros(size(t)); h(t > 0 & t < 7) = 1; y = conv(x...
16 hours ago | 2
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how i can display confusionchart in app.UIAxes
According to the confusionchart documentation, you can specify the parent that the confusion chart will be created in, by specif...
16 hours ago | 0
Figures not showing up with for loop
Be sure to reset ClArray (and CpArray, xArray and whatever else should not carry over from one iteration of the outer (i) loop t...
18 hours ago | 0
Insert extra line in figure only in certain boxplots
A = rand(4,1); B = rand(4,1); f = figure; boxplot([A,B],Whisker=100,Labels={'Var A','Var B'},LabelOrientation="inline"); t...
19 hours ago | 0
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Displaying animation in UI Axes in app developer
"the animation is just displayed on the app and not in the axes" I'm not sure what this means. I put your code into a script th...
20 hours ago | 0
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gamma function with two parameters
Is this the function you mean to use? <https://www.mathworks.com/help/matlab/ref/gammainc.html>
1 day ago | 0
How can I keep track of a constantly updating text file's latest string
The following function returns a string containing the last non-empty line of text in the file (or "" if there are none). Call ...
1 day ago | 0
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for loop jump an element of an array
From the documentation for the colon operator: "x = j:i:k creates a regularly-spaced vector x using i as the increment between ...
1 day ago | 0
How to concatenate multiple Tables by comparing it to the variables associated with individual tables in workspace.
"This Would not work if any of the cases under the IF & elseif aren't satisfied then this table will not be Concatinated. " Tha...
1 day ago | 0
How to create function with name-value pair arguments?
fcn('name','booey','professional_life','noine','personal_life',2,'tooth_size','XXXL') fcn('name','Fred','home_planet','Mars','t...
1 day ago | 0
paint the circle in half
pos = [2 120 2 2]; color = [0 0.5 0.5]; r = pos(3)/2; c = pos([1 2])+r; th = linspace(-pi/2,3*pi/2,101); % <- use an odd n...
1 day ago | 0
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How to get a normal box plot graph we get in origin software which consist of box plot with data points scattered and normal distribution curve in MATLAB
Maybe something like this. This fits distributions to the data, but if you have the distributions already you can plot them the ...
2 days ago | 0
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How to resolve reshape error
Pick an N that's a multiple of k, or adjust N to be a multiple of k in the code, or append enough bits onto the end of the bit s...
2 days ago | 0
Speeding up lookup in large tables
Here's one way that could work, if you have enough memory to generate the idx matrix, which is of size [size(A,1) x size(B,1)] ...
2 days ago | 1
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How to remove a specific class in the confusion matrix?
load testCells x = removecats([trueCellR{:}],'n/a'); y = removecats([testCellR{:}],'n/a'); x = reordercats(x,[3 2 1]); ...
2 days ago | 0
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How do I change the colors of Stack Plot bars for different variables
One way is to set the FaceColor directly: % random data: x_values = 1:10; data = rand(10,5); color1 = [0.3, 0.5, 0.7]; %...
3 days ago | 0
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Handling data form structures
% Specifying the direction and file type direction = '.'; type = '*.txt'; Data = dir(fullfile(direction,type)); % Getting a...
3 days ago | 0
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How to extract numbers against a certain text name in a text file containing time stamp data
str = fileread('sampletext.txt'); C = regexp(str,'DA2.0:(.*?)\r?\n','tokens'); vals = str2double([C{:}])
3 days ago | 0
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Error message "Invalid use of operator"
Looks like you mean to say: grad_all((ii-1)*2+[1 2],:) = -grad;
3 days ago | 0
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Connect Matlab with chatgpt
May be useful: https://www.mathworks.com/matlabcentral/answers/1894530-connecting-to-chatgpt-using-api
3 days ago | 1
How to write in Matlab a matrix whose coefficients depend on a real alpha parameter
Here's an example: alpha = 0.4; N = 9; x = linspace(0,1,N); y = linspace(0,1,N); xy = x(:).*y(:).' % column x * row y ...
3 days ago | 0
How to multiply numbers if they meet a certain condition?
V = [5, 17, -3, 8, 0, -7, 12, 15, 20, -6, 6, 4, -7, 16] idx = V>0 | rem(V,3)==0 Now idx is a logical vector saying whether eac...
3 days ago | 1
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uitabe : Empty Space is not fill with data
The amount of empty space (if any) is determined by the Position and ColumnWidth properties of the uitable. Try changing those ...
3 days ago | 0
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How to read shape file in matlab?
You are attempting to read a file in the current directory: S = shaperead(shapefile.name); That is, you are not taking into ac...
3 days ago | 0
Using surf function with data from excel table
It would help to have the data, in order to know whether the x and y are gridded or scattered. https://www.mathworks.com/help/m...
4 days ago | 0
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Find frequency of words from different books
Maybe this will help: % example data: counts = { ... {'the' 464; 'project' 87; 'of' 253} ... {'the' 300; 'of' 314; '...
4 days ago | 0
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How can I subtract every element in an array (including the first element) from the first element of the same array
v = 3:4:15 % an array v-v(1) % subtracting the first element from each element v(1)-v % subtracting each element from the firs...
4 days ago | 0
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