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How to extract data from structure with 1*1 and 8761 field and each field has two rows? I need one of the rows
load('val.mat'); f = fieldnames(val.Space_101.Glare_Sensor_1) % get % val.Space_101.Glare_Sensor_1.x0.x0_0 % val.Space_101...

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Variables doesn't update after running the code.
This line: fprintf('It's right!!') contains a syntax error. So, instead of that sentence being printed, you will see an error ...

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Plotting a variable in a for loop
I only see one for loop. X is your audiorecorder object, and x is apparently the recorded audio data, but the relation between ...

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Insert two boxplots into one graph
If you use the same parameters for the combined boxplot as you did for the individual ones (i.e., use 'Whisker', inf), does that...

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From table generator unit combination of on and off I want to sum the values of the on generator capacity
You can read the data in that spreadsheet into your MATLAB workspace using readmatrix or another function, and then once you hav...

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How to extract audio file from the code which produces a sound with sound function.
You can use audiowrite to save data to a .wav file.

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Creating functions to use inside for loops - birthday paradox simulation
If I understand what you want to do, you can create an m-file called get_k_random_days.m (or whatever you want to call it), with...

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Function definitions in a script must appear at the end of the file. Move all statements after the "bandstop2" function definition to before the first local function definitio
@Sherif Aly Thank you for the m-file. That's a script, and like the error message says, function definitions in scripts must be ...

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how to give legend according to excel data headers
One way to get the headers out of the .xlsx file: [values,str_values] = xlsread('test.xlsx') How to apply that in your code: ...

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Split matrix into square cells
% (x,y) in units of m, presumably xy = [1 2 3 12 56 7; 4 5 6 5 6 8; 7 8 93 43 65 3; 7 8 93 43;]; ...

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finding if number(iteration) is the sum of 2 numbers inside same array - matlab
Here's something that may be close to what you want to do: X = [20 40 50 60 80 100]; ismember(X,sum(X(nchoosek(1:numel(X),2)...

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Multiple outputs of a single function in a single array
P=exp(-0.152+0.859.*6.5-1.803.*log(10+25)); a=linspace(0,3); for ii = 1:numel(a) b=(log(a(ii))-log(P))./0.57; fun=@(...

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How can I plot the same index from two arrays?
T_start1 = {182 444 392 201 155}; %start time T_end = {728 938 674 638 702}; %end time ydata = [cell2mat(T_start1); cell2...

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DATA COMBINATION AND ARRANGEMENT
D = -.0174+.0002*(0:4); E = 370+ 1*(0:6); F = 177+ 1*(0:6); G = 0.01+.0005*(0:4); [GG,FF,EE,DD] = ndgrid(G,F,E,D); DEFG...

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access elements of vector within struct
"Is it absolutely necessary to copy the previous values of S.A into a temporary variable as above?" No, it's not necessary. yo...

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How do i fix line length errors in matlab
If I understand correctly what you are trying to do, it is to fill in a 2D character array YLabel1, each row of which correspond...

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Read a Special Text File
% read file into character vector data data = fileread('textfile.txt'); % remove the first two lines idx = find(data == newli...

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Draw from cartesian xy-data a spiral
M = readmatrix('spiral'); plot(M(:,2),M(:,3)); % x, y

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i have a single row vector contains 0s and 1s and want to convert every 3 bits into integer how can i do that??
You say you want [010,111] as a result: x=[0 1 0 1 1 1 ]; xx = reshape(x,3,[]).'; y = zeros(1,size(xx,1)); for ii = 1:size...

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Why is my p-value matrix after using corrcoef filled with NaN?
Columns 5, 6 and 7 of Hmeas are all NaN, so even with 'rows','complete', there is nothing you can get but a NaN result. load('h...

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its giving me an error when making calculator app in app designer
The error says, "'Value' must be a double scalar." [emphasis added]. The error is happening because f is not a scalar, since it...

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create vector in for loop and then need to store vector in a matrix one after another
Is this what you mean? clear all v = []; for a=1:0.1:2 k1=a; for b=1:0.1:2 k2=b; v(end+1,:)=[k1 k...

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Finding the index of the first significant decimal.
v = 0.85324; s = 0.0281234; s_rounded = round(s,1,'significant') v_rounded = round(v,-floor(log10(s_rounded))) v = 85.32...

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Giving different colors in skyplot when default colors repeat
When you set the ColorOrder of gca before calling skyplot, you are setting properties of the current axes, whatever it is. Then ...

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uitable background outside cells
The white background outside the cells of the uitable is part of the uitable itself. Unfortunately, setting that color is not su...

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how to draw contour plot
There are a couple of problems. First is the use of linspace. The arguments to linspace are (min value, max value, number of po...

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How to convert 25 columns and 6 rows excel sheet into a matrix?
Use readmatrix to get a matrix of data out of that sheet. Or use readtable or readcell if you also want the header row(s) if any...

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How to improve plot
semilogy comes to mind.

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Creating a GUI to dictate caxis values
Yes. Define callback functions for your sliders. In the callback functions, get the 'Value' of the slider and use that to set th...

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Maxk gives an incorrect result
For the case that i == 1 you have: maxk(m(1:n),2) m(1:n)is the first n elements of m (going in column-major order, which is wh...

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