Answered
Repeating a function n times with different values from a vector
If you organize the input differently, this is not so difficult x = [1 2 ; 3 4 ; 5 6] ; % organized into rows N = size(x,1) ; ...

ungefär 3 år ago | 1

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Answered
i have a question that works backwards
What about % X is known F = X D = ones(size(F)) % F ./ (D.^5) equals X or is this to simply thought by me ;-)

ungefär 3 år ago | 0

Answered
How can i use nchoosek to output both the k combinations and the remaining combinations?
The remaining values can simply be obtained using nchoosek(1:n, n-k), you just have to flip the order of the output :-) n = 7 ...

ungefär 3 år ago | 2

Answered
How to create a matrix from for loop result?
D = [170, -80, -30, 0, -50, -30, 20, -60, 100, -60 -20]; Iplus=find(D>0); A = [] ; % initialize for i=1:size(Iplus,...

ungefär 3 år ago | 0

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Answered
How to select desired row
ix = [0:224:81563]' + 1:112 ; % calculate row indices ix(ix>size(A,1)) = [] % remove row indices that are too larger A2 = A(ix...

ungefär 3 år ago | 1

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Answered
How to change character in multiple cells in to number 0 and 1?
Sex = {'F','M','F','F','M','M','F'} [~, SexNum] = ismember(Sex, {'F','M'}) SexNum = SexNum - 1 % 1 = 'M', 0 = 'F', -1 = other ...

ungefär 3 år ago | 0

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Answered
load files whith a previus specified name
Didn't you just make a simple typo? % Aplha vs Alpha % | |

ungefär 3 år ago | 1

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Answered
Using numpad 8 2 6 4 as North South East West
Perphaps my getkey function may be of use to you: https://www.mathworks.com/matlabcentral/fileexchange/7465-getkey

ungefär 3 år ago | 0

Answered
I keep getting the error message that vectors must be the same length in the plot command
So, apparently the two vectors are not of the same length. You really should learn how to debug your own code. Set a breakpoint ...

ungefär 3 år ago | 1

Answered
Select random elements from three consecutive columns in a big matrix?
M = magic(5) % input data N = 4 % number of selections nC = 3 % number of consecutive columns % engine szM = size(M) r...

ungefär 3 år ago | 0

Answered
select random row inside the cell
You want the row, or the row number to be returned? A={[1,4,6;6,5,4;1,2,4],[1,3;5,4],[1,2;1,7;6,8]} rownumber = cellfun(@(c)...

ungefär 3 år ago | 0

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Answered
Writing a Matrix 6x6 in one line
help reshape

ungefär 3 år ago | 0

Answered
Vectorizing nested for loops
A = magic(5) d = squareform(pdist(transpose(A))) % transpose to obtain vecnorm between columns pdist and squareform are part ...

ungefär 3 år ago | 1

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how to find the element which is greater than or equal to its row and smaller or equal to its column in a matrix
function out = saddle(M) [r, c] = ind2sub(size(M), 1:numel(M)) ; tf = arrayfun(@(r, c) all(M(r, c) >= A(:, c)) && all(M(r, c) ...

ungefär 3 år ago | 0

Answered
omit same element inside cell
You can convert the elements of each cell to a char array and apply unique on that cell array of chars. A = {[1,2,3,4],[4,2,3],...

ungefär 3 år ago | 1

Answered
How to store vectors into a matrix that have different sizes?
Next to cell arrays, you can also use struct arrays, which can be more ... euh ... structured than cell arrays ;-) a(1).data = ...

mer än 3 år ago | 0

Answered
Repeating or rerunning a loop
Use a while loop, which is more flexible than a for -loop. Something like this might work: seq = [3, 1, 2, 1, 3, 2]; % trial se...

mer än 3 år ago | 0

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Answered
Probability of exactly one even number
I suggest you use two counters: one counting the numbers of even values in a single throw, and one counting the number of throws...

mer än 3 år ago | 1

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How can I get a infinite loop in matlab?
an infinite loop k = 0 ; while true % useful code here k = k + 1 ; disp(k) end But are you sure you want an...

mer än 3 år ago | 0

Answered
How to use varargin: to specify a second input variable with separate output
You cannot compare strings with different lengths using ==. Use isequal or strcmpi instead, for instance: if isequal(lower(vara...

mer än 3 år ago | 1

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Answered
Removing a Range of Elements from an array
ix = find(M(:,12) > 750, 1, 'first') % find the row index of the first element in the 12th column of A being larger than 750 M...

mer än 3 år ago | 0

Answered
How do i average all result in total loop,if some result in some of loop are NaN
Store each result in an array and average after the loop. An example: c = nan(1,10) ; % pre-allocation for speed for k = 1:10 ...

mer än 3 år ago | 0

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Answered
Counting occurrences of a pair of numbers in a logical vector
A vectorised alternative: A = [0 1 0 0 1 0 0 0 0 0 1 1 0 0 1 0 1 ]; % Input vector ix = find(A) ix = ix(2:2:end) B = cumsum(...

mer än 3 år ago | 0

Answered
Using range in a vector
I am a little confused by your problem, but here are my thoughts. You might want to use the function ANY, or its sibling ALL, or...

mer än 3 år ago | 0

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Answered
There is an error in exp function but it doesn't tell what the error is?
Use dbstop if error and inspect the contents of the variables! You'll see what is wrong :-)

mer än 3 år ago | 0

Answered
Set up an OR argument for equation
Simpler, without an if-else: v = (xdot_1-xdot_2)).*(sign(x1-x2-gap)+1)/2; fp = (k_inp*(x1-x2-gap) + (v>0) * c_inp * (xdot_1-xd...

mer än 3 år ago | 0

Answered
Set up an OR argument for equation
Can't you use logical indexing? A simplified example v = 10:20 q = v > 13 & v < 18 f(q) = 2*v(q) f(~q) = 30 + v(q)

mer än 3 år ago | 1

Answered
How can I compare two measurements which are composed of matrices such as [0 1 0 0...]
You are looking for a measure of consistency between two measurements which are represented as binary vectors of the same length...

mer än 3 år ago | 0

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Answered
How can I make each cell array consistent in length?
A final attempt to answer this question :-) C = {1:4 1:2 ; 1:5 1:6 ; 1 1:3} % a m-by-n cell array N = cellfun(@numel, C) % old...

mer än 3 år ago | 3

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Answered
split a diagonal matrix
Having a vector V with any number of elements, this does the job: V = [2 1 4] n = numel(V) ; M = zeros(n,n,n) ; M(linspace...

mer än 3 år ago | 1

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