Answered
Sparse Matrix with Same number of non-zero values in each column
A = createMatrix(8, 4); full(A) function A = createMatrix(n, k) A = sparse(n,n); for i=1:n A(randperm(n, k), i) = 1/k; ...

13 Tage ago | 0

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Answered
Displaying frames captured by getframe(h) at original size
You can use "imshow" which by default show images in 100% magnification. "doc imshow" for more details.

15 Tage ago | 0

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Answered
using imagesc to plot a matrix of data
%C = 0.1:0.1:0.2; C = [0.1 0.2]; % There are only two points along x F = 0.1:0.1:0.5; figure(1) subplot(1,3,1) mean_GT...

15 Tage ago | 0

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Answered
How to create a circle filled with equidistant points inside it?
Here is a sub-optimal (or almost optimal) solution. Filled dots will form the hexagonal formation. radius = 10; d = 1; % dis...

15 Tage ago | 0

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Answered
How I plot a matrix wich each rows is a different curves on the graph?
a = randn(6, 21); plot(a')

16 Tage ago | 0

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Answered
How to Convert Magnitude(g/N)/Phase (degrees) data in to Complex Receptance (m/N)
x =[0.00000e+000 1.16597e+002 -1.80000e+002 3.12500e-001 9.33462e+001 5.02240e+001 6.25000e-001 ...

17 Tage ago | 0

Answered
3D Plot of a Matrix with only Char data type
x= {'USA', 'Germany', 'South Africa', 'China', 'Mexico', 'Australia'}; y = {'America', 'Europe', 'Africa', 'Asia', 'South Amer...

17 Tage ago | 0

Answered
Massive time required for pdist
%tic X = rand(1000,2); Y = rand(1000,2); % fprintf('Time for array creation: '); %toc %% Version 1 tic j=1; for i = ...

18 Tage ago | 0

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Answered
How to arrange the constraints shape to A matrix and b constants automatically ( Ax <= b)??
% Let x = [x1; x2; x3; x4] % x1 + x2 <= x3 + x4 + 1 ; % constraint 1 % => [1 1 -1 -1]*x <= 1 % X3 <= x1 + 10 ; % cons...

20 Tage ago | 0

Answered
Array of Structures to Structure of arrays
% array of structure M = 5; for i=1:M a(i).f1 = rand(1,1); a(i).f2 = rand(1,1); end a a(1) % struncrure of arr...

21 Tage ago | 0

Answered
How to detect and delete similar value rows in Matlab?
A =[1 2 3 4; 1 3 4 2; 1 4 2 4; 1 3 2 2]; % For columns with the same values i = find(all(diff(A, 1)==0, 1)); ...

23 Tage ago | 0

Answered
How to collect output matrix from for loop
If you want to accumate over different matrices n = 10; A = zeros(3, 3) for i=1:n A = A + randi(5,3,3); end A If you ...

23 Tage ago | 0

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Answered
Write a script file that will compute the sine of an angle using the Taylor series formula:
disp("Input the angle in degrees (x) and the number of terms (n)") %x = input('x: '); x = 45; %n = input('n: '); n = 100; ...

23 Tage ago | 0

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how to normalize a uniformly distributed random values such that every row sum of X(:,:,i) should be 1 except for ith row?
n=6; key_size=3; i=5; X = rand([n,key_size,6]); idx = [1:i-1 i+1:n]; X (idx, :, :) = X (idx, :, :)./sum(X (idx, :, :), 2); ...

23 Tage ago | 0

Answered
Please Help Debug/ What are the errors?
t=-2:0.1:8; % define t first, since it is used next y=t.^3-6*t.^2+3*t+10; % need the element based operat...

23 Tage ago | 0

Answered
Count occurrences of categorical conjunction
Cat_one = categorical({'A'; 'B'; 'A'; 'D'; 'C'; 'B'; 'B'; 'A'; 'A'}); Cat_two = categorical({'X'; 'X'; 'Y'; 'Y'; 'Y'; 'X'; 'Y';...

24 Tage ago | 1

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Answered
How to plot array with result of roots?
P=1:0.1:10; A=P; B=-(10+5*P); % 5*P not 5P C=3; D=-15; for i =1 : length(P) fv=[A(i) B(i) C D] v(i)=max(roots...

24 Tage ago | 0

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Answered
What am I missing with plot? math is working fine, just need to plot it.
For ervery loop, you have only one point (x,y) which you can not plot as a line. Use plot(x, y, 'bo') to plot the point instead...

24 Tage ago | 0

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Answered
sampling and FFT of a sinusoid signal
f0 = 50; fs = 250; t = (0:1/fs:(0.1-.5/fs)); % [0, 0.1) g = sin(2*pi*f0*t); plot(t, g); L = 512 Y = fft(g, L); % compute...

25 Tage ago | 0

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Answered
Why the following code does not give me the 3D plot. Please someone help me out.
In your definition of R0, there is a term rho1+rho2, which happen to be 0. So R0 is just 0. Check your formula first.

26 Tage ago | 0

Answered
How to find standard deviation of all entries in a range and omit nan
A=rand(10); StdssA=std(A(2:4,3:7), 0, 'all', 'omitnan') % doc std

26 Tage ago | 0

Answered
How to reduce computation time with 8 nested for loop
Brute force searching for such problem is not feasible. If it takes around 10 days to reach to 10^13, it takes 10*10^11=10^12 d...

27 Tage ago | 0

Answered
Display value of a variable within ' '
system([stata_location ' -b do mydir/mydofile ' num2str(run_id)]);

27 Tage ago | 0

Answered
why is this happening? It's just an example from the textbook.
syms x f=@(x) x-3; r=solve(f, x)

28 Tage ago | 0

Answered
How to computer a frequency spectrum and find its largest spectral energy
fs = 10; tspan = [0:1/fs:100]; % specify the time points xint = [3.0;2.0;1.0]; [t,x]= ode45(@nonlin,tspan,xint); % remov...

28 Tage ago | 0

Answered
How to delete specific cells according to the condition from cell array?
If you want to keep the output as a cell array (as the input), you cannot delete them, but you can assign them to empty array. ...

28 Tage ago | 1

Answered
Finding the required number of high frequency values from histogram
a = [randn(10000,1)-5; randn(10000,1); randn(10000,1)+5]; histogram(a) [y,edges] = histcounts(a); % Use the center of edges...

29 Tage ago | 1

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Answered
How to find out roll-off from magnitude response of filter in matlab
fs = 2000; [b,a] = butter(9,400/(fs/2)); [h, f] = freqz(b,a,16384,fs); h = 20*log10(abs(h)); [~, i3db] = min(abs(h - 10*log1...

29 Tage ago | 0

Answered
Finding location of specific element from a MATRIX returns '0×1 empty double column vector'
[i,j] = find(abs(a-23.5975)<1e-20)

29 Tage ago | 0

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Answered
How to move a signal to be on the x-axis
try "detrend".

29 Tage ago | 0

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