Community Profile # Jan

Last seen: Today Active since 2009

It is easier to solve a problem than to guess, what the problem is.

Questions about FileExchange submissions are welcome - get my address from the code. I do not answer mails concerning questions in the forum.

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How do I gapfill a vector only if gaps (NaNs) are 10 elements or less?
With FEX: RunLength : x = [1,2,3,5,7,9,10,9, NaN,NaN,5,3,2,NaN,NaN,NaN,NaN,NaN, ... NaN,NaN,NaN,NaN,NaN,NaN,12,13,14,15,16...

ungefär 6 timmar ago | 0

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How to force matlab in a loop to always give you scientific/exponential notation?
What about: ax = axes; plot(1:10); drawnow; ax.YAxis.Exponent = ceil(log10(max(ax.YAxis.Limits)));

en dag ago | 0

how to sort a cell array inside a struct?
Expand C = splitapply(@(x) {x}, T.ID_number, G); to C = splitapply(@(x) {sort(x)}, T.ID_number, G);

en dag ago | 0

Why stock DOT function is suboptimally implemented
In dot.m we find a test for integer types, checks by isvector, comparison of lengths, both vectors are shaped by (:) and after a...

2 dagar ago | 0

Save disp output as a string/cell variable
Since Matlab R2021a: str = formattedDisplayText(x)

2 dagar ago | 0

How can I translate one matrix into a new one based on given old and new (row, column) indices?
Z = [1:4; 5:8; 9:12; 13:16]; MatShift(Z, [-1, -1]) MatShift(Z, [2, 2]) function Y = MatShift(Z, Shift) % Input: Z: Matrix,...

3 dagar ago | 0

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How to find out point of change of sequence of ones and zeros?
What do you expect in the other rows of the 4th column? All rows must have the same number of columns, according to the definiti...

3 dagar ago | 0

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Send "abort signal" to MEX
You could check from inside the MEX function, is a key is pressed. Or you can use mexCallMATLAB to run a drawnow command and re...

3 dagar ago | 0

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How to write cyclic permutation as an array in matlab?
P = [1 4 6 2 5 7 8 3]; Q = zeros(size(P)); Q(circshift(P, -1)) = P P = [22, 35, 17, 9, 11, 23, 56, 43, 25, 19, 26, 15, 28, 30...

4 dagar ago | 0

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Please contact the Matlab sales team. As far as I know, you can get trial versions of the newest version only, but MathWoorks m...

4 dagar ago | 0

error: Index exceeds the number of array elements (1).
Do not use the name "sum" for a variable. Avterwards the function with the same name is shadowed: clear sum sum(1:10) % wor...

4 dagar ago | 0

How to handle a large binary vector?
UINT8 oder Logical use 1 byte per value. 225 MB are usually fine. You can store the bits packed in UINT8 also, but this is harde...

4 dagar ago | 0

I am trying to create an array h of size 1001 which can store value of 2 integrals
gl=10; gr=10; N=1000; L=10; l=10; syms x; i = 1; f = gl * (7 / 44) * (exp((-1 * (L-N) * i) / (N * l * cos(x)))); B = vpa...

5 dagar ago | 1

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"Unrecognized function or variable 'filename'. Error in audioread (line 82) filename = convertStringsToChars(filename);'
A very bold guess: Are you working with admin privileges? Did you open the file audioread.m and overwrite the first line of cod...

5 dagar ago | 0

How can I get image file in web app?
You are not the only person with this problem. See: https://www.mathworks.com/matlabcentral/answers/884084-problems-with-uigetfi...

5 dagar ago | 1

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generate a sine and cosine wave with 4 cycles .
0:1:3 is [0,1,2,3]. This is less than 4 cycles. 4 cycles mean: x = 0:0.1:8*pi stem() is working. plot(x,y, '.') is an option a...

5 dagar ago | 0

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matlab percentage always showing zero
After: p = p ./ numel(I), sum(p) is not 1.0, but 0.333. You do not want to divide by numel(I), but by numel(Red), or equivalentl...

5 dagar ago | 0

How to pre-allocate a matrix (from cell) when dimensions change
Simplify C=cell2mat(B(r)); to C = B{r}; This creates a cheap shared data copy, so C does not occupy additional memory: it re...

6 dagar ago | 0

Element wise cell division
S{i,j} ./ (S{i,j} - V{i,j}) = 1 ./ (1 - V{i,j} ./ S{i,j}) and for all V and S the division V ./ S replies the elements -6.

6 dagar ago | 1

"Unrecognized function or variable 'filename'. Error in audioread (line 82) filename = convertStringsToChars(filename);'
Your variable "info" is a struct, not a char vector or string. info = audioinfo('Off of Newton Exit 17.wav'); [Y, FS] = aud...

6 dagar ago | 0

plz help how can repetition rows matrix
a = [1 0 0; 0 0 1; 0 1 0]; rows = size(a, 1); n = 5; index = rem(0:n-1, rows) + 1 b = a(index, :)

6 dagar ago | 0

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Creating Matrix provided elements
A = rand(4) + 1i * rand(4); A = A + A'; % Hermitian % Convert to vector: D = diag(A).'; L = triu(A, 1); Lf = L(L ~= 0...

6 dagar ago | 1

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If statement in a for loop
The if Commadn needs a scalar condition. Because NewDist(:) < 1 is a vector, Matlab inserts an all() automatically. So your code...

7 dagar ago | 1

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check ismember for each element individually
You want to get a logical vector for each element, which is TRUE for the matching elements. Then this is efficient: a = [1 2 3 ...

7 dagar ago | 0

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How do I run a custom function when my toolbox gets installed?
How is the toolbox "regularly distributed"? It is usual, that a toolbox or software has a "configure" function to set up the en...

9 dagar ago | 0

how to implement this in a better way or what is the mistake
Use the debugger: dbstop if error Run your code afterwards until Matlab stops at the error. Then check: size((xs-X)/r) size(...

9 dagar ago | 0

Applying 'if' condition within location-dependent thermal Properties
After defining ro_ult = @(location,state) ro_d-(ro_d-ro_s)*exp(location.y/0.06); ro_ult is a function handle, which expects tw...

9 dagar ago | 0

add different number of zeros in the beginning of a matrix
The output cannot be a matrix, as Dyuman Joshi told you already, because in a matrix all rows must have the same number of eleme...

10 dagar ago | 1