Jan

Last seen: Today

12,910 total contributions 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.

Jan's Badges

View details...

Answered
transfer variables between functions?
Variables cannot be "transfered" between functions. You need to provide them as inputs and outputs. Combining GUI and the actua...

1 hour ago | 0

Answered
Using Euler's method as ODE-solver in Matlab
How was the step size determined to be h=1/18? The author of the code wanted it to be 1/18. What does Euler's method in the w...

1 hour ago | 0

Answered
run the script without opening the figure, its possible?
There is no chance to guess, what your code does, if we cannot see it. Maybe there is no reason to display the images, maybe thi...

22 hours ago | 0

Answered
For Loop through .wav files
See: FAQ: How to process a sequence of files Folder = 'insert your folder here'; % Sure that there is a sapce after your name?...

22 hours ago | 0

Answered
Share X and Y Axes for tiled layout plot
I'd solve this with subplot: https://www.mathworks.com/matlabcentral/fileexchange/20003-panel https://www.mathworks.com/matlab...

23 hours ago | 0

Answered
Calling method in the GNU Scientific Library
You can create a C++-Mex function and call the library throught it. Unfortunately all inputs must be transposed, because Matlab ...

23 hours ago | 0

Answered
Homework Help: What did I do wrong?
The == operator compares its arguments elementwise. If they have a different number of elements, this fails, except it one is a ...

23 hours ago | 0

Answered
Error in Y label
In the code you have: kylabel('Value of the function', 'fontize', 10) title('function 1', 'fontzie', 10) The error message sa...

23 hours ago | 0

| accepted

Answered
Kunge Kutta 4 - Biological Application
I would like some help to understand if I did it right. I cannot estimate what you consider as right or not right. For a real...

1 day ago | 0

Answered
convert logical values to numeric values
a = [1 1 5 1 1] b = ischange(a) c = double(b) % Alternative: d = b + 0 % Addition with DOUBLE converts to double cell2...

1 day ago | 0

| accepted

Answered
Averageing cell arrays in cell array
Using loops is the direct, clean and efficient way to access nested structs. cellfun works on cells only, not on nested structs...

1 day ago | 0

| accepted

Answered
i have number i need save only integer without any point or 'e'
To get an integer value use round, floor or ceil. If you only want to hide the fractional part, which can contain small numbers...

1 day ago | 0

Answered
How to change a char array into char row vectors?
ListA = ['BETA1'; ... 'BETA2']; ListAC = cellstr(ListA); Now you can run REGEXP on the cell string.

1 day ago | 0

| accepted

Answered
FOR LOOP, add value to each row at a time
X = ones(1, 10); for n = 1:size(X, 2) Y = X; % Copy original value Y(n) = Y(n) + 1; ... do what you want to ...

1 day ago | 0

Answered
Looping over paths, more than one loop
I do not understand, what your inputs are exactly. But maybe this idea helps you: keepCode = cell(length(vectorOfNames), length...

1 day ago | 0

| accepted

Answered
List the 10% highest values of a distribution
I guess that "x_UDP" is the same as "x". RMSF = load('rmsf.dat'); n = RMSF(:,1); %number of residue x = RMSF(:,2); %RMSF fo...

1 day ago | 1

Answered
Matlab code that does integration as well plot
Your code overwrites H in each iteration. So the final PLOT command outside the loop draws 1 point only. Because single points a...

1 day ago | 0

Answered
Error: Index exceeds the number of array elements (1).
You have defined months as a scalar: months(1) = month(dates(1)); Then months(g) must fail, if g>1. I cannot guess, what you ...

1 day ago | 0

| accepted

Answered
Problem with fscanf command in creating .txt file
filename1 = ['*new.txt'];%filename fid_t=fopen(filename1,'r') This cannot work: '*new.txt' is not a valid file nam...

1 day ago | 0

| accepted

Answered
Save multiple image automatically
Your code must fail with an error message in this line: outfile = fullfile(outfolder, sprintf(['%s-coba-%03d.%s',basename,'.jpg...

2 days ago | 0

| accepted

Answered
How to make a +5 (or any +number) jump in array values inside a for loop?
You can use FEX: RunLength , or this part taken from it: function n = RunLength_count(x) d = [true, diff(x(:).') ~= 0, true]; ...

2 days ago | 0

Answered
Can't start Matlab
I guess, that the preferences folder is damaged. Try to recreate it by renaming 'C:\Users\<youraccount>\AppData\Roaming\MathWork...

2 days ago | 0

Answered
Reading a text file containing strings and numeric data
fid = fopen(File, 'r'); if fid < 0, error('Cannot open file'); end TimeLen = 1e6; TimeIndex = 0; Time = zeros(1, Ti...

2 days ago | 0

| accepted

Answered
ode45, Please tell me how to fix this?
Did you save one of your functions as "ode45.m" file? Check this in the command window: which ode45 -all If you find a user-de...

2 days ago | 0

Answered
How do I compute the mean value of odd rows of a random matrix (mxm)? (using if and rem)
I do not have any idea, how "if" can be used to produce a random matrix. But using REM() to get the odd indices is easy: for ...

2 days ago | 0

| accepted

Answered
How to extract specific row from a large csv file and reshape it
Data = csvread(FileName); Row = [1, 100, 200, 300]; figure; for iRow = 1:numel(Row) Block = reshape(Data(iRow, :), 8, 8...

2 days ago | 1

| accepted

Answered
How to append values from different files to an array?
Do not use "mean" as name of a variable, because then you cannot use the function mean() anymore. Folder = 'C:\Your\Folder'; ...

2 days ago | 0

Answered
Prime number sum from cell array
The variable myArr is a double array. Then isstrprop(myArr, 'digit') is FALSE for all elements, because onbly CHARs can be digit...

2 days ago | 1

Answered
Completing elements of a matrix
a = [2; 3]; b = [1.5; 2]; c = kron(a, [ones(size(a,1), 1), b])

2 days ago | 0

Answered
How to compare two strings with different sizes?
A bold guess: a = 'AAGCTACGC' b = 'ACGCAA' Nmin = min(numel(a), numel(b)); Nmax = max(numel(a), numel(b)); match = fals...

2 days ago | 0