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Matrix does not want to multiply and gives an error when I multiply a 3x3 matrix with a 3x1 matrix
Do Ainv*B not B*Ainv A=[9,29.3, 140.99; 29.3, 140.99,827.693; 140.99, 827.693, 5400.863] Ainv=inv(A) % inverse matrix B=[4...

約2年前 | 0

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How to set the visibility of labels attached to controls such as edit boxes in APP Designer？
First, make the label show up in the Component Browser by right-clicking the edit field and selecting "Include component labels ...

約2年前 | 0

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How to fix the size of markers when drawing in Matlab? Make the marker larger with local magnification instead of being fixed and unchanged.
Using image objects or patch objects instead of text objects will cause the "markers" to scale appropriately when you zoom in or...

約2年前 | 2

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How to make a scatter plot where each point is colored according to a given ID and the xlabel ticks are determined by the associated string.
Here's one way: % random data in a table N = 1000; Value = randn(N,1); Condition = char(randi(4,N,1)+64); ID = "ID "+randi(...

約2年前 | 0

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How to rearrange String Data within table relative to one Column of Data.
"Should I match the text pattern before Concatinating them into one Table?" You can do it that way, but since I don't know much...

約2年前 | 0

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How can I remove inverted repeat pairs of strings from a table?
T = readtable('table.csv') Here's one way to find pairs of reversed rows: temp = string(T.(1)) == string(T.(2)).'; [r2,r1] = ...

約2年前 | 0

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How to have different line styles and markers in one plot?
% Define alpha values alpha_values = [0, 0.25, 0.5, 0.75, 1]; % Define gamma values for each alpha gamma_values = [ 1,...

約2年前 | 0

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Adding Legend of Data Categories
baseline_L = 885.63; baseline = baseline_L; % random data y_values = 2000*rand(90,4); [N,M] = size(y_values); % GRAPH...

約2年前 | 0

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Erorr when replace row's value of table in-array.
Sometimes the X don't exactly match (e.g., they're different by ~1e-15), so this finds the closest. for ii = 1:numel(jointTSS1)...

約2年前 | 0

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Why is this While Loop not running?
It's not possible for a number to be simultaneously less than 6 and greater than 12: while margin<6 && margin>12 Did you...

約2年前 | 0

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How to plot correctly errorbars on grouped bar plot?
I am able to reproduce the problem; it looks like a bug in MATLAB, having to do with creating an errorbar in an axes that has a ...

約2年前 | 1

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3D plotting of the bounding box around few boxes
Two problems that I can see: 1. The tranpose here (actually it's a complex-conjugate tranpose): item_vertices = vertices{i}'; ...

約2年前 | 0

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Subplot of a matrix 2x361x10
% random 2x361x10 data: data = rand(2,361,10); data(1,:,:) = data(1,:,:)*2; figure [~,n,p] = size(data); for ii = 1:p ...

約2年前 | 0

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Finding value for each degree from matlab figure
data = readmatrix('Naca LD1408 9R.txt'); f = fit(data(:,1), data(:,2),'smoothingspline','SmoothingParam',0.3); xi = -15:1:18...

約2年前 | 1

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how to solve the error comes in line 25
These lines make sigma and beta tables with one variable each sigma = data(:,5); beta = data(:,6); which produces the...

約2年前 | 0

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have a static text display box to display text (GUI) app designer
The app version of a static text uicontrol is a TextArea (uitextarea function).

約2年前 | 0

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How to avoid patch color in legend?
In the call to legend, you can specify which lines (or whatever) you want included. Here it's legend_lines: legend_lines = gob...

約2年前 | 0

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Index exceeds the number of array elements. Index must not exceed 1.
%% Design Project Part 2 % 2.1 % Constants: kapp = 0.009; % m^3/mol*min L = 1; % m Vtot = 0.25; % m^3 ...

約2年前 | 0

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How to open a .bin file containing several frame images
This would read the first frame: filename = 'myfile.bin'; fid = fopen(filename,'r'); time_stamp = fread(fid,1,'double')...

約2年前 | 0

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"Unrecognized method, property, or field 'value' for class 'matlab.ui.control.NumricEditField'."
Use "Value" not "value".

約2年前 | 1

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what does the vertical line in the editor window mean?
<https://www.mathworks.com/help/matlab/matlab_prog/edit-and-format-code.html#brqxeeu-58>

約2年前 | 1

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I am trying to plot a line but it is not working.
Use element-wise division ./ in the calculation of Xe.

約2年前 | 0

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MATLAB App Designer - Reading Data
It's possible I'm not fully understanding how the app is supposed to work, but there are a few potential or likely problems that...

約2年前 | 1

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I am struggling trying to figure out this code I have it completed but I keep getting errors, can you help?
Well, it doesn't take a crystal ball to see that this is not going to work (multiplying a 1x15 character vector by a 1x8 charact...

約2年前 | 0

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These 3 codes when run give error
In WHO.m lines 45-48, you have for i=1:Nfoal group(i).pos=lb+rand(1,dim).*(ub-lb); group(i).cost=fobj(group(i).pos); ...

約2年前 | 0

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Speed Up String Conversion
Avoid using table2cell for this; instead, access the table data directly (using curly braces {}, or, even better, dot indexing) ...

約2年前 | 1

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how to change width and space in barplot?
"increase the width of the axis so that it is less compressed" Well, you can resize the figure, either manually or programmatic...

約2年前 | 0

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While Loop not running
This loop will never terminate if entered while Close>L_entry_price==false; i=i+1; end because only i changes. Close and...

約2年前 | 0

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How to calculate maximum distance between two points (coordinates) on a XY (2D) plane ?
"seem to be the largest distance" Seems to be, but it's not. The x-scale and y-scale are not quite the same. Use axis equal t...

約2年前 | 2

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How do structures work?
To create a scalar (as opposed to a 0x0) structure array, this 'AllSampleRates', {},... needs to be 'AllSampleRates', {{}},.....

約2年前 | 0