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I am getting an error "Index in position 1 exceeds array bounds. Index must not exceed 1." Error in "v_x(n) = fmincon(fun_x(n), x0, A_x(n,:), b_x(n,:)); Can someone help"
Change: fun_x{n} = @(v_x)((norm(v_x(n) - v_des_x(n)))^2); fun_y{n} = @(v_y)((norm(v_y(n) - v_des_y(n)))^2); v_x(n...

oltre 3 anni fa | 0

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How can i use intersect function correctly ?
There are no overlapping points: f = @(x) 1 + cos(x); g = @(x) sin(x); x = 1.54:.01:1.6; plot(x, f(x), 'r.', x, g(x), 'b.');...

oltre 3 anni fa | 2

Risposto
generating matrices from another matrix
x = [1,0,0,1,0,1]; d = diag(x); Share1 = d; Share1(1, 2) = 1; Share2 = d; Share2(1, 3) = 1; Share3 ...

oltre 3 anni fa | 0

Risposto
how to select a whole row in a matrix
ismember(A, B, 'rows') % Or maybe ismember(A.', B.', 'rows')

oltre 3 anni fa | 1

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Risposto
fzero not working with nested functions and mvncdf
I tried to reproduce your problem, but get a different error message: r = 0.03; d = 0.06; sigma = 0.2; V0 = 100; ...

oltre 3 anni fa | 0

Domanda

What can we do with the thread "license-manager-error-9"?
The thread why-do-i-receive-license-manager-error-9 is not useful anymore. The huge page reacts extremely slow and many users ad...

oltre 3 anni fa | 5 risposte | 0

5

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Risposto
Loop for plot vectors
A = [20 10 80 805 82.1420812600000 20 10 80 815 82.5962426700000 20 10 80 825 83.0389831800000 20 10 80 835 83.46...

oltre 3 anni fa | 0

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how to use if loop to determine to make a plot
function output = myfcn(input1, input2, input3) if nargin < 3 doPlot = true; % Default if 3rd input is not provided else ...

oltre 3 anni fa | 1

Risposto
How can I apply an operation to every row of a matrix?
If R is e.g. a linear transformation expressed as a [2 x 2] matrix: coor = rand(162, 2); a = 2 * pi / 180; R = [cos(...

oltre 3 anni fa | 1

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Add time stamp in seconds
The text() command inserts text in an axes. Then the text is displayed on the screen. This does not modify the image in any way....

oltre 3 anni fa | 1

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Can the efficienty of this code be improved, either computationally or just in terms of lines of code?
A0 = [2; 3; 1; 2; 2; 3; 1; 2; 2; 3]; B0 = [4.10047; 7.44549; 3.62159; 6.56964; 2.87221; 4.51231; 4.01697; 5.60534; 5.5440; 7.07...

oltre 3 anni fa | 0

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How to convert matrices of different sizes in a for loop into a single column vector?
... PhaseC = cell(1, nLevels); for k = 1:nLevels ... PhaseC{k} = acos(subband./amp); end Phase = cat(2, PhaseC{:})...

oltre 3 anni fa | 0

Risposto
How to keep only a new modification in an array using for loop?
a = [1 0 0 1 1 0 0 1 0]; new = repmat(a, numel(a), 1); for j = 1:numel(a) if new(j, j) == 0 new(j, j) = 1; ...

oltre 3 anni fa | 0

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License checkout failed after cloning my HDD
Use a clone tool like CloneZilla, which duplicates the volume ID also. [EDITED] The volume ID can be modified by the computer a...

oltre 3 anni fa | 0

Risposto
How can I generate a matrix of pseudo-random floating point values from a uniform distribution(5, 8), but without range() function and other ToolBoxes?
Does this mean, that you cannot use rand()? range() is trivial to replace: rrange(2)-rrange(1)

oltre 3 anni fa | 0

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How to rename a lot of mfiles in a folder
folder = 'D:\something'; files = dir(folder); files = file(~[files.isdir]); % Files only! for k = 1:numel(files) %...

oltre 3 anni fa | 0

Risposto
Speeding up matrix operations
Matlab calls optimized libraries to solve linear algebra operations. These libraries are based on BLAS and LAPACK, but modern ve...

oltre 3 anni fa | 1

Risposto
Power of a binary matrix
If you really define the matrix multiplication with mod(A*B, 2): A = randi([0,1], 11, 11); % Test data, use your "a" tic %...

oltre 3 anni fa | 1

Risposto
Power of a binary matrix
[EDITED] This is not the multiplication wanted by the OP - I leave it for educational reasons. Assuming, that you mean the us...

oltre 3 anni fa | 1

Risposto
How to get calculated variables from ode function?
The function to be integrated computes these values. You have all required inputs as output of ODE23S already. Use them as input...

oltre 3 anni fa | 0

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How to write data horizontally in matlab using xlswrite to express meaning like excel
'A2:A4' specifies 3 elemente in a row.

oltre 3 anni fa | 0

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Risposto
Automatically load a struct from a struct with a variable name
file = 'test1.mat' [~, name] = fileparts(file); values = load(file); subStruct = values.(name); a = subStruct.a; ...

oltre 3 anni fa | 0

Risposto
Problem understanding this "for" loop
Before the loop xx is pre-allocated to the maximum number of iterations. The for loop runs from 1 until MAXITER. The variable o...

oltre 3 anni fa | 1

Risposto
How to to add column 3rd+4th, 6th+7th and 9th+10th from a 8x12 matrix?
C1 = B(:, 3) + B(:, 4); C2 = B(:, 6) + B(:, 7); C3 = B(:, 9) + B(:, 10); Or maybe: C = B(:, [3,6,9]) + B(:, [4,7,10])

oltre 3 anni fa | 0

Risposto
How to filter out files with a list of specific string in UIGETFILE command?
As far as I can see, the file pattern [x] is not implemented in uigetfile: xlsfile = uigetfile('EF[AI]*.xls', 'Select Excel fil...

oltre 3 anni fa | 0

Risposto
Hold on and Hold off command keeps all plots on subsequent graphs
clear clears the variuables of the workspace. clc clears the command window. Both do not have any connection to the state of the...

oltre 3 anni fa | 0

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Compiled mex file raises memory issue
Avoid using int as dimensions. Call mxCreateNumericArray as explained in the documentation: mxArray *mxCreateNumericArray(mwSiz...

oltre 3 anni fa | 1

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How to prevent triggering 'SizeChangedFcn' callback too many times?
See this solution: https://www.mathworks.com/matlabcentral/answers/570829-slow-sizechangedfcn-or-resizefcn#answer_475105

oltre 3 anni fa | 1

Risposto
Analyzing different sections of an array
Either reshape the array: x = rand(20, 100); y = reshape(x, 20, 10, 10); m = mean(x, 2); % If you want the mean value over b...

oltre 3 anni fa | 0

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How to perform svd without using the inbuilt function?
You can find working solutions in the FileExchange: https://www.mathworks.com/matlabcentral/fileexchange/12674-simple-svd htt...

oltre 3 anni fa | 0