Answered
Function with a structural array
Concatenation is done using square brackets |[]|. Curly brackets are for defining cell arrays. Also, while it is a question of p...

ongeveer 5 jaar ago | 2

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Answered
Subplots within for loops
figure() ; for plotId = 1 : 4 subplot(2, 2, plotId) ; plot(x{plotId}, y{plotId}) ; end figure() ; for plo...

ongeveer 5 jaar ago | 7

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Answered
overlay plot on imgage
hold on for overlays, for example: imshow( myImage ) ; hold on ; plot( x, y, 'rx' ) ; and you will see the plot...

ongeveer 5 jaar ago | 1

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Answered
How to find intersection coordinates of node points in truss image?
If you are always dealing with regular trusses, your best option may be to detect vertical and horizontal edges by summation ove...

ongeveer 5 jaar ago | 1

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Answered
How to match and take the part of the string between two specified characters
Replace the line that extracts the start time with: startTime = strtrim( regexp( content, '(?<=Start Time\s+:\s*).*?(?= - )...

ongeveer 5 jaar ago | 2

Answered
How to take only first part of the string
Assuming that all cells content is of class char: B = [A(:,1), cellfun(@(s)regexp(s, '\S+', 'match', 'once'), A(:,2:3), 'Uni...

ongeveer 5 jaar ago | 0

Answered
Using fprintf to print in text file
The first argument in the call to FPRINTF should not be the file name but the file handle that you get with FOPEN: kid = fop...

ongeveer 5 jaar ago | 0

Answered
Replacing numerics in text using regular expressions.
Here is a small trick assuming that no character in your string interferes with <https://www.mathworks.com/help/matlab/ref/sprin...

ongeveer 5 jaar ago | 1

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Answered
How to split the name in to two cells
Or regexp-based: if C = {'56', 'mat find false', '89 mm', 'mat 96 kl'} ; then result = regexp(C, '(mat)?\s?(.*)', 't...

ongeveer 5 jaar ago | 2

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Answered
Sorting excel data (numbers and strings) and outputting sorted data to another excel file.
*EDIT 09/27 @ 22:57 UTC* I updated your file and attached it to my answer (Data_original.xlsx). I picked on number (093321, d...

ongeveer 5 jaar ago | 2

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Answered
Detect Edge in picture with low contrast
Well, that picked my interest so I just spent a lunch break on it. Running the following using the |process| function attached (...

ongeveer 5 jaar ago | 6

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Answered
Dividing a cell array into permutations of two column cell
*EDIT 1:* Here it goes: words = {'A', 'B', 'C', 'D'} ; n = length( words ) ; wordIds = arrayfun( @(k) nchoosek( 1:n...

ongeveer 5 jaar ago | 1

Answered
How to convert cell array with Nan to a double array with Nan=0?
x = cell2mat(C) ; x(isnan(x)) = 0 ;

ongeveer 5 jaar ago | 1

Answered
How to extract a row from a transpose of a matrix
Take the first column of the original matrix.

ongeveer 5 jaar ago | 3

Answered
MatLab Logical answer always 1
Yes, all these tests (relational operators) return a logical, which is a value that is true (1) or false (0). But: >> 5 <...

ongeveer 5 jaar ago | 3

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Answered
Define an input that is ONLY a 3-by-4 matrix
You can use specialized functions described here: <https://www.mathworks.com/help/matlab/input-and-output-arguments.html> ...

ongeveer 5 jaar ago | 1

Answered
How is it possible that Matlab still hasn't created a built in function that automatically inserts a title above a group of subplots?
When you start getting picky, you don't use SUBPLOT anymore because it is not that flexible. Instead you create an axes object t...

ongeveer 5 jaar ago | 4

Answered
Import an Excel File
I think that I am starting to see what you did, and it is not something that we generally do actually, hence the misunderstandin...

ongeveer 5 jaar ago | 1

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Answered
How to remove repeating rows without unique function?
Use the |'stable'| option: >> A = randi( 3, 10, 2 ) A = 2 3 1 1 3 1 3 1 3 ...

ongeveer 5 jaar ago | 2

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Answered
I am trying to solve following error in my code, Error using .* Matrix dimensions must agree.
If you got this code from someone else and it should be working (because it used to work with the exact same parameters), my gue...

ongeveer 5 jaar ago | 1

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Answered
How do I read a text file with certain format line by line with each line of different length?
There are more orthodox solutions, but I updated a former answer quickly in case you need a short term solution. The only assump...

ongeveer 5 jaar ago | 0

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Answered
How to remove artifacts from a signal
Why not simply: d = [0; diff( signal )] ; isValid = ~logical( cumsum( -sign( d ) .* (abs( d ) > 10) )) ; then e.g...

ongeveer 5 jaar ago | 6

Answered
reshape a matrix from the text
The output of TEXTSCAN is a row cell array with 4 cells and each one of them contains a numeric array (column vector) of 2250 va...

ongeveer 5 jaar ago | 0

Answered
how to read grid data from text file ?
The format seems to be GridTOMS as mentioned <https://acd-ext.gsfc.nasa.gov/Data_services/cloud_slice/new_data.html here>. There...

ongeveer 5 jaar ago | 1

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Answered
How Can I replace specific lines in a text file
Here is an example, but we can be much more specific. % - Read source. content = fileread( 'myData.txt' ) ; % - Update...

ongeveer 5 jaar ago | 5

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Answered
Comparing Elements of two matrices if loop
Or you can operate in 3D: A = [-10, 2, -8, 4; ... -4, 6, -3, 7; ... 2, 5, 3, 6] ; B = [ 3, 6; ... ...

ongeveer 5 jaar ago | 0

Answered
How to check whether a 2d matrix is gradually increasing in values in row direction.
>> flags = [false( 1, size( A, 2 )); diff( A ) < 0] flags = 2×3 logical array 0 0 0 0 0 1 >> A(flags...

ongeveer 5 jaar ago | 1

Answered
How to import data from a non-symmetric .txt file.
If you are stuck with usual tools, try this: content = fileread( 'virusDat.txt' ) ; % - Split in rows, remove extra empt...

ongeveer 5 jaar ago | 1

Answered
Extracting and Manipulating Data
Looking at your data: data = xlsread( 'data2016.csv' ) ; and displaying a slice: 0.0001 0.0026 0.0021 0.0...

ongeveer 5 jaar ago | 0

Answered
Processing timer for Sparse matrix is too long?
You won't be able to do it, vectorizing or not. If random integers are really in |1:7|, the probability, when you pick two el...

ongeveer 5 jaar ago | 2

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