Beantwortet
How to implement this coupled ODE
[t,m] = ode45(@(t,m) myode(t,m), tspan, m0); Here myode has 2 inputs only. function dydt = myode(t,y,a_in) Here it has 2 inp...

mehr als 3 Jahre vor | 0

Beantwortet
Loop cycle to input similar txt files
Data_{m}_{i} is your invention an no valid Matlab syntax. This is not the way programming works. Matlab does not magically modi...

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
randomly sample a pair of values in a double
You want a random integer in the range [1, 65] as index? randi([1, 65]) I have no idea, what "distance and then the value/180*p...

mehr als 3 Jahre vor | 0

Beantwortet
Rename variable throughout project/directory
You can modify the field names using regexprep : % Get a list of M-files: List = dir(fullfile(Folder, '**', '.m')); for k = 1...

mehr als 3 Jahre vor | 0

Beantwortet
explaining this code for me please it's about making circuit in matlab but i confused here because i want to write comments in every line i have 160 line but i put some
while ~isreal(R) || any(R<=0) || mod(n,2)==0 || any(n<1) Comment: Repeat until R is a real positive value and n is an odd posit...

mehr als 3 Jahre vor | 0

Beantwortet
How to access specific data in a cell array
No. Cell arrays need to be accessed in a loop for this case. You can hide the loop using cellfun, but this runs a loop internall...

mehr als 3 Jahre vor | 1

| akzeptiert

Beantwortet
MEX error LNK2019:unresolved symbol
I suggest to follow the official installation instructions: https://nlopt.readthedocs.io/en/latest/NLopt_Installation/ and for W...

mehr als 3 Jahre vor | 0

Beantwortet
Increase figure size on the screen but save with specific dimension in centimeters
Figures have the properties 'Position', which defines the size on the screen, and 'PaperPosition' and 'PaperSize', which determi...

mehr als 3 Jahre vor | 0

Beantwortet
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...

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
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.');...

mehr als 3 Jahre vor | 2

Beantwortet
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 ...

mehr als 3 Jahre vor | 0

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

mehr als 3 Jahre vor | 1

| akzeptiert

Beantwortet
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; ...

mehr als 3 Jahre vor | 0

Frage

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...

mehr als 3 Jahre vor | 5 Antworten | 0

5

Antworten

Beantwortet
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...

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
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 ...

mehr als 3 Jahre vor | 1

Beantwortet
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(...

mehr als 3 Jahre vor | 1

| akzeptiert

Beantwortet
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....

mehr als 3 Jahre vor | 1

Beantwortet
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...

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
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{:})...

mehr als 3 Jahre vor | 0

Beantwortet
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; ...

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
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...

mehr als 3 Jahre vor | 0

Beantwortet
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)

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
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) %...

mehr als 3 Jahre vor | 0

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

mehr als 3 Jahre vor | 1

Beantwortet
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 %...

mehr als 3 Jahre vor | 1

Beantwortet
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...

mehr als 3 Jahre vor | 1

Beantwortet
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...

mehr als 3 Jahre vor | 0

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

mehr als 3 Jahre vor | 0

| akzeptiert

Beantwortet
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; ...

mehr als 3 Jahre vor | 0