Stephen23
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Content Feed
Switch Case or if-else?
"Switch statement cannot judge the range of R. It may be possible but it must be very tricky." switch true case R <= 1.2 ...
8 hours ago | 0
Switch not recognizing that 0 is greater than -1
x = 0; switch true case x<-1 y=1 case x<=2 y=x^2 otherwise y=4 end
9 hours ago | 0
How to convert serial number to date number
The CMEMS documentation gives several possible time units, one of them is % julian_day_unit = "days since 1950-01-01 00:00:00" ...
20 hours ago | 0
Reading multiple csv file from multiple folder
P = 'absolute or relative path to the main folder'; S = dir(fullfile(P,'*','*.csv')); for k = 1:numel(S) F = fullfile(S(k...
5 days ago | 0
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Submitted
Custom List / Arbitrary Sequence Sort
Sort a text array into the order of custom lists / arbitrary text sequences. Alphabetic sorting for many non-English languages.
5 days ago | 1 download |
Submitted
Customizable Natural-Order Sort
Alphanumeric sort of a cell/string/categorical array, with customizable number format.
5 days ago | 38 downloads |
Submitted
Natural-Order Filename Sort
Alphanumeric sort of filenames or filepaths, with customizable number format.
5 days ago | 428 downloads |
Submitted
Natural-Order Row Sort
Alphanumeric row sort of a cell/string/categorical/table array, with customizable number format.
5 days ago | 17 downloads |
how insert array in field struct
"it's possibile to avoid loop?" Does A already exist or not? Your question does not make this clear... here are both cases: Z ...
5 days ago | 1
Content of table not fully displayed
It is unclear why you are storing a cell array in a table with only one variable... why not just the cell array? S = load('Slee...
5 days ago | 0
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I want to know the process of changing the array to table. Too many table variables because there are too many arrays.
The simple solution is to use CELLSTR, which gives ARRAY2TABLE the cell of char vectors that it requires: M = (1:5).'*[1,10,100...
5 days ago | 0
Cropping and saving images: "unable to perform assignment because the size of the left side is 825-by-1081 and the size of the right side is 450-by-601."
% specify folder with uncropped images P = '/Users/greencrystal19/Documents/MATLAB/numframe'; S = dir(fullfile(P,'*.tif')); %...
5 days ago | 0
Datetimes in table not displayed
C = {datetime(2021,1,1:2);datetime(2022,2,3:6);datetime(2023,3,7:9)} D = NaT(numel(C),0); for k = 1:numel(C) V = C{k}; ...
6 days ago | 0
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error "Error in untitled (line 9)"
The ODE45 documentation states that its first input argument must be a function handle: https://www.mathworks.com/help/matlab/r...
7 days ago | 1
convert arraycell in array string
"it's possibile to convert in string?" Probably. I am guessing that you want something like this: C = {1;[2,34];[56,7,89]} F ...
7 days ago | 0
| accepted
How to rearrange data to a given decreasing rank order
A = [4,20,60,40,5]; X = [1,2,3,5,4]; B = sort(A,'descend'); B = B(X)
7 days ago | 0
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Extracting only certain data from a matrix
Where M is your matrix: X = M(:,1)==3; B = M(X,:)
7 days ago | 0
Calculate the average of each matrix block
Here are some simple MATLAB approaches: A = repmat([1,2,3,4,1,2,3,4,1,2,3,4,7,6,5,4],16,1) M = mean(permute(reshape(A,4,4,4,4)...
7 days ago | 0
Calculating a mean matrix of a cell array
M = mean(cat(3,A{:}),3,'omitnan')
8 days ago | 0
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Finding files in directory with two different strings in filename
Use FULLFILE rather than concatenating text together. Here is a simple approach that solves the problem you pose in your questi...
11 days ago | 1
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How to rename identical variables under one common name?
T = readtable('myData.xlsx') T.Type = regexp(T.Type,'^[A-Z]{4}','match','once')
11 days ago | 1
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Populate a matrix using the elements of some columns of another matrix as index and other as values
" may have multiple values with the same indices. In my case, I need to add the values with the same index" That is exactly wha...
12 days ago | 0
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Adjusting the datetick issue.
Do not use deprecated DATENUM or serial date numbers or the like. Use DATETIME (and set the format if required): S = load('m_t...
12 days ago | 1
Why can not the 'save' command store a matrix of single precision into a txt file? Warning: Attempt to write an unsupported data type to an ASCII file. Variable 'AA2' not wri
" What's the reason..." Because venerable SAVE does not really offer much functionality when exporting to text file, due to it ...
13 days ago | 0
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Format display number into table
You can change the variable viewer format in the options: Preferences -> Variables -> Format -> Default Display Format. You ne...
14 days ago | 0
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Define strings in MATLAB
"I have lots of set and get commands which I need to generate them within a for loop do that I have not to type all of them." D...
14 days ago | 0
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Hi! Can you help me create a vector containing multiples of 10? like 10^-5 to 10^5?
"Can you help me create a vector containing multiples of 10? like from 10^-5 to 10^5?" Guessing that you really mean integer po...
17 days ago | 1
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Find the indices of minimum value in each block of a block diagonal matrix
Using BWLABEL as KSSV suggested: S = load('synced_stamped.mat'); M = S.synced_stamp M(isnan(M)) = 0; [X,N] = bwlabel(M,4) F...
19 days ago | 0
datetime comparison fails but datenum works
"datetime comparison fails but datenum works" Actually DATENUM fails but DATETIME works. The dates you uploaded have a higher ...
20 days ago | 1
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Skip folders in a for loop
"How do I skip the dates 26, 27 and 28?" I would just use DIR to get a list of content in the parent folder. For example here i...
20 days ago | 0
| accepted