Answered
convert smaller number to large number in matlab
If you want to change the default display style in command window then run this line format long G and then display the number...

mer än 3 år ago | 2

Answered
how to change some parameter of a m-file from command window
.m file is a text file, so you can use all the functions to manipulate text files; for example, check the list of the function h...

mer än 3 år ago | 0

Answered
Adding zeros at the end of arrays in a loop
Finally, you have encountered the problem of naming variables like var1, var2, var3, ... This thread has a detailed discussion o...

mer än 3 år ago | 0

Answered
how to creat an algorithm to inverse matrix
There are several algorithms for calculation of matrix inverse: https://en.wikipedia.org/wiki/Invertible_matrix#Methods_of_matri...

mer än 3 år ago | 1

Answered
3D hypercube to 2D array
No, If you want to read the elements left to right then first you need to permute the 1st and 2nd dimensions A; % 250x250x150 ...

mer än 3 år ago | 0

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Answered
create a matrix from a text file
Try sub2ind(): https://www.mathworks.com/help/matlab/ref/sub2ind.html to convert from row and column number to a linear index. S...

mer än 3 år ago | 0

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Answered
finding point on a function
You can use polyval() xv; % x data-points yv; % y data-points p = polyfit(xv, yv, 3); x = a; y = polyval(p, x);

mer än 3 år ago | 1

Answered
how to plot given exponential fn?
Several ways: mesh(), surf(), contoruf(), contour(), pcolor(), imagesc() [X, Y] = meshgrid(linspace(-1, 1, 50)); Z = exp(X.^2+...

mer än 3 år ago | 1

Answered
Gaussian distribution with sum 1
What about M = randn(10); M_sum1 = M./sum(M, 'all'); Check: >> sum(M_sum1, 'all') ans = 1

mer än 3 år ago | 0

Answered
Graph an exponential equation
You can use fsolve() for such problems. For example fun = @(x) exp(-0.005*x).*cos(0.05*(2000-0.01*x.^2).^(0.05))-0.01 sol = fs...

mer än 3 år ago | 0

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Answered
Finding angles with optimizaiton
You need at least two equations to find a unique solution. For a single equation, fix the value of one of these variables theta...

mer än 3 år ago | 0

Answered
mean value of array after every n columns
Here is a loop-free option a = matfile('x'); b=a.dataPower; %dataPower array bround=round(b(1:131072)); k = mean(reshape(bro...

mer än 3 år ago | 0

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Answered
Whats the difference when using [ ] and : ?
reshape() work by taking the elements of the input matrix column-wise and arrange them into the shape you want. For example, hel...

mer än 3 år ago | 1

Answered
Function XXXX not supported for code generation.
By default, Simulink converts the whole model to C code. If you are using this inside a MATLAB function block, you can use coder...

mer än 3 år ago | 1

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Answered
imwrite saving image incorrectly
Does your png image have transparent components? Try saving with the alpha channel. [file, path] = uiputfile('.png'); [image, ...

mer än 3 år ago | 0

Answered
Transfer function with 2 inputs and 2 outputs
Study this code syms x(t) v(t) I(t) F(t) s v(t) = diff(x, t); eq = diff(v) == (562/101)*x+(6744/101)*I+(1/50500)*F; lap = ...

mer än 3 år ago | 0

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Answered
Structs Help on indexing
Try something like this city_name = 'Abidjan'; idx = contains({climate.info.name}, city_name); city_data = climate.info(idx)

mer än 3 år ago | 0

Answered
Is there an other commande in previous matlab version which remplace the commande "serialportlist" ?
Previously there were instrfind() and instrfindall().

mer än 3 år ago | 0

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Answered
How to take a difference within the data of the same city but not across the city, Part 3
Same answer as this: https://www.mathworks.com/matlabcentral/answers/685423-how-to-take-a-difference-within-the-data-of-the-same...

mer än 3 år ago | 0

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Answered
How to take a difference within the data of the same city but not across the city, Part 2
Same answer as this: https://www.mathworks.com/matlabcentral/answers/685423-how-to-take-a-difference-within-the-data-of-the-same...

mer än 3 år ago | 0

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Answered
How to take a difference within the data of the same city but not across the city
Try this T = readtable('test.xlsx'); New_Visitors = splitapply(@(x) {[x(1); diff(x)]}, T.Cumulative_visitors, findgroups(T.Cit...

mer än 3 år ago | 0

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Answered
Unable to convert expression into double array
It seems that some terms in your integral cannot be solved symbolically therefore MATLAB throws this error. You can try to calcu...

mer än 3 år ago | 1

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Answered
Intersection of a row and column from a matrix
Are you looking for this? p=[1 2 3;4 1 2;2 8 1]; x = input('x? '); y = input('x? '); P = p(y,x)

mer än 3 år ago | 0

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Answered
Combine the results of each iteration into an array
Use fprintf() a=1;b=2;c=3; for t=[a b c] fprintf('%d ', t) end fprintf(newline)

mer än 3 år ago | 0

Answered
4byte uint8 array to single uint32 value
You can use typecast() myArray = [0x32 0x45 0x56 0x81]; out = swapbytes(typecast(myArray, 'uint32')); % swapbytes is needed on...

mer än 3 år ago | 4

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Answered
Applying a function across all columns of a table
See varfun(): https://www.mathworks.com/help/matlab/ref/varfun.html. Convert your code into a function like this function y =...

mer än 3 år ago | 0

Answered
How to export a matrix of numeric values to Excel using writematrix
The documentation mentions that the newer functions have better cross-platform support and performance as compared to xlswrite. ...

mer än 3 år ago | 0

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Answered
How can I find coordinates via matlab command?
It appears that there is no built-in function. You will need to use the API of an external service, e.g., google map, to get thi...

mer än 3 år ago | 0

Answered
How do I index an entire row given a randomised value?
You can use logical indexing El_mat = [...., 34 0.214 0.236 0.588, 35 0.259 0.336 0.114,....] n = 34...

mer än 3 år ago | 0

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Answered
How to upload a .mat file into Amazon s3
You can use API to write the data: https://www.mathworks.com/help/matlab/ref/webwrite.html, but that can get complicated for AWS...

mer än 3 år ago | 0

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