# Jan

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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**Content Feed**

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...

1 día ago | 0

| accepted

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)));

3 días 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);

3 días 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...

4 días ago | 0

Save disp output as a string/cell variable

Since Matlab R2021a: str = formattedDisplayText(x)

4 días 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,...

4 días ago | 0

| accepted

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...

4 días 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...

4 días 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...

5 días ago | 0

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how can i dowenload r2016b

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

5 días 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...

6 días 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...

6 días 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...

6 días ago | 1

| accepted

"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...

7 días 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...

7 días ago | 1

| accepted

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...

7 días 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...

7 días 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...

7 días 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.

7 días 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...

7 días 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, :)

7 días 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...

7 días ago | 1

| accepted

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...

8 días ago | 1

| accepted

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 ...

9 días 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...

10 días 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(...

10 días 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...

11 días 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...

11 días ago | 1

How do i end my code

You have showed some code, which runs once only. The output shows, that this function is called again afterwards, but we do not ...

11 días ago | 0

How to use the MATLAB radio button to switch between 2 matrices

Check the value of the radio buttons in the callback, which starts the computations. Then use the wanted matrix accordingly. A ...

11 días ago | 0

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