Answered
Function Calculates Fibonacci Numbers
n = 13; prv = 0; out = 1; for k = 3:n [out,prv] = deal(out+prv,out); % replace |+| with your function NNIADD disp(o...

5 years ago | 0

Answered
cell array with numeric values only
Do NOT use loops or cellfun for this, unless you really want to write complex and slow MATLAB code. The most efficient solution...

5 years ago | 0

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How to replace a character in matlab
vocals = ["a"; "e"; "i"; "o"; "u"; "y"; "ae"; "oe"; "aa"]; for k = 1:numel(vocals) fnm = sprintf('%s.wav',vocals(k)); ...

5 years ago | 0

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Answered
How to convert array so that I have only numerical values
Do NOT use cellfun for this, unless really you want your code to be slow. The most efficient solution by far is this: str = {'...

5 years ago | 0

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Insert elements into vector
index = [1;2;4;5;6;8;9]; index_val = [11;25;3;4;56;7;9]; removed_index = [7,3]; % simpler to use a numeric array removed_va...

5 years ago | 1

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Answered
How to generate a random decimal number between -1 and 1?
The inputs to rand define its output size, not the output value range. Its range is fixed to 0..1, but you can adjust generate o...

5 years ago | 0

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Answered
coverting string to ascii value in Matlab
"the letter 'a' is 61 why in matlab i get NAN?" Because that is the wrong way to get the ASCII value (or character code, to be ...

5 years ago | 3

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Answered
Operator '==' is not supported for operands of type 'cell'.
Use strcmpi instead of testing for character equality.

5 years ago | 2

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Sorting Vector A in Ascending order and apply the same steps to Vector B
[A,X] = sort(A) B = B(X)

5 years ago | 1

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Answered
Subtracting 2 cells in an array
>> -diff(A) ans = -2 -2 3 -4 5 >> sum(-diff(A)) ans = 0

5 years ago | 0

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Answered
Format Array column in fprintf
The short answer is: not easily. Your output example has varying numbers of fractional digits 0.000000 % six decimal places 4...

5 years ago | 0

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Answered
Preallocating a cell array of chars?
A = cell(3,1); A(:) = {''} This assigns one scalar cell (on the RHS) to all of the cells in the array A: https://www.mathwork...

5 years ago | 3

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Answered
Format number in fprintf
I am guessing that unlike your example you actually want the columns to be aligned, e.g. where M is your matrix: >> fprintf(' %...

5 years ago | 0

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Answered
How do I replace Matrix elements
Use AND instead of OR: >> A = [-1,0,4,6;1,1,0,2;-7,0,5,0;5,1,5,1] A = -1 0 4 6 1 1 0 2 -7 0 5 0 ...

5 years ago | 0

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How can I get the secondary diagonal of a matrix?
diag(fliplr(A))

5 years ago | 0

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Answered
Find words common across multiple string cells
My ancient version does not support strings, so I used cell arrays of character vectors, but I would expect that this should wor...

5 years ago | 0

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Answered
Function with Non Constant Variable
You could create an anonymous function: fun = @(x) S(3,1,x,2); .. fun(17)

5 years ago | 0

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How can I change the first row of my matrix to all 0s using a for loop?
Where M is your matrix: M(1,:) = 0;

5 years ago | 0

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How to form a structure array variable?
Simpler using indexing: vec = {'a','b','c'}; Test{1}.(vec{Ind}) https://www.mathworks.com/help/matlab/matlab_prog/generate-fi...

5 years ago | 0

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How to I create a function handle through recursion?
I don't see any reason why you need any recursion, basic vectorized code works just fine: V = 0:size(A,1)-1; F = sum(A(:,1).*t...

5 years ago | 1

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Answered
Automatisation of .mat files load and storing into a matrix
N = 20; C = cell(1,N); for k = 1:N F = sprintf('dx00%d.mat',k); S = load(F); C(k) = struct2cell(S); % if there ...

5 years ago | 0

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Importing files in the right order
"Any simpel way to make this happen?" Method one: The simplest way is to rename the files with sufficient leading zeros, e.g. ...

5 years ago | 1

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Answered
saving workspace of each pair of variable in a loop
for ii = 1:numel(X) for jj = 1:numel(Y) ... your code fnm = sprintf('workspace_%d_%d.mat',ii,jj); ...

5 years ago | 0

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Answered
Matrix comparison with unequal sized matrices
N = nnz(B(1:end-1)>A(2:end)) Tested: >> A = randi(9,1,5) A = 2 5 7 2 6 >> B = randi(9,1,5) B = 3 9 5 ...

5 years ago | 0

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Answered
Why a matrix multiply a variable and then be divided by the same variable produce different results?
"I am confused by the code show above, b is just a number, so why the matrix multiply b and then divide the same b (line 5) woul...

5 years ago | 1

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Answered
find text in text file
>> T = readtable('temp0.txt','Delimiter','\t','ReadVariableNames',false) T = Var1 Var2 Var3 __________ ...

5 years ago | 0

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Unknown error in my m.function
There are a few combinations of values for which your function does not define the output argument. If you call the function wit...

5 years ago | 0

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Answered
How to turn off text interpreter when plotting timeseries objects
One approach would be to set the interpreter for the entire figure before plotting (and reset it again afterwards): https://www...

5 years ago | 0

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Answered
I have multiple files. I need to combine info in the files.
As Rik suggested: av = a(:); bv = b(:); [X,Y] = ndgrid(1:10); M = [av(X(:)),bv(Y(:))]

5 years ago | 0

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Answered
reshape vector to matrix
A general solution for an arbitrary number of rows and columns: >> d = [1,2,3,4,5]; >> r = 4; >> m = hankel(d(1:4),d(r:end)) ...

5 years ago | 0

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