Stephen
Suspensa Vix Via Fit
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Content Feed
Meshgrid or other structure?
Simpler: M = hankel(-96:4:96)
alrededor de 4 horas ago | 1
| accepted
How do I convert a 2d matrix to a 3d matrix and vice versa efficiently?
format compact A(:,:,1) = [1,2;3,4;5,6]'; A(:,:,2) = [10,20;30,40;50,60]'; A(:,:,3) = [11,21;31,41;51,61]'; A(:,:,4) = [100,...
1 día ago | 0
| accepted
Submitted
Numeric to Ordinal-String
Convert numeric values to a string array of integers with ordinal suffixes. Fully vectorized!
1 día ago | 2 downloads |
Submitted
Number to Yllion
Convert a number to text giving the value using Donald Knuth's Yllion naming scheme.
1 día ago | 1 download |
How to find the index of the minimum value in a matrix.
Where M is your matrix: [R,C] = find(M==min(M(:))) or [~,X] = min(M(:)); % or [~,X] = min(M,[],'all','linear'); [R,C] = ind2...
3 días ago | 1
Get all unique combinations of 2 columns from a table
V = {'Item1','Item2','Item3','Item4'}; T = table(1, 5, 7 ,10, 'VariableNames',V) X = nchoosek(1:numel(V),2); D = diff(T{:,V}(...
3 días ago | 1
| accepted
How do I transform this format 202007011030 (2020 07 01 10:30) into a readabel format?
You can easily import as DATETIME, no need to import as text nor fiddle around with text: fid = fopen('Fehmarn_Wind_date.txt','...
3 días ago | 0
| accepted
How to create a 3D matrix from subtracting 2D matrices (like creating 2D matrix from subtracting vectors)?
C = permute(A,[1,3,2]) - permute(B,[3,2,1])
3 días ago | 1
| accepted
Reading text file data with different data formats
Move the "header" to the top: txt = fileread('sample test data.txt'); [hdr,spl] = regexp(txt,'^#[^\n]+','match','split','linea...
4 días ago | 1
Use of assignment '=' in plot command?
That name-value sytnax was introduced in R2021a: y=1:10; plot(y,'.-',linewidth=2) % ^^^^^^^^^^^ this syntax introdu...
4 días ago | 0
| accepted
Write sections of a long string as new lines in a text document
sub = 'XYZYXYZYZYZXYZYXYZ0XYXYXYX'; tmp = split(sub,'0'); fprintf('%s\n',tmp{:})
4 días ago | 0
| accepted
How to save a matrix data with a concatenated variable name?
It is simpler and more efficient to use a structure: C = {'PrimSpeed','SecSpeed'}; S = struct(); for k = 1:numel(C) ...
5 días ago | 0
| accepted
Find corresponding element in same row as given value in matrix
Assuming that A and B are you matrices, and that the Y values are in the second columns: [valA,idx] = max(A(:,2)) valB = B(idx...
8 días ago | 0
| accepted
What is the best practice to recursively extract data from a nested structure in matlab?
S=struct(); S.case='1'; S.type='A'; S.values.model1.case='2'; S.values.model1.type='C'; S.values.model1.values.mission.case...
11 días ago | 0
| accepted
Identifying numbers within a long string containing multiple occurrences of text and numbers in one row
Simpler and gives the requested output: str = 'x y z p (Pa)...
11 días ago | 0
| accepted
Read CSV with yyyyMMddhhmmss and group months
Here is one way to group by month only, ignoring empty lines of the CSV file: str = fileread('sample.csv'); tkn = regexp(str,'...
11 días ago | 0
| accepted
using mat2cell
Using NUM2CELL would be simpler: C = num2cell(M,1) But if you insist on using MAT2CELL: C = mat2cell(M,1001,ones(1,10))
11 días ago | 0
how can i negative all value in a matrix except diagonal?
M = [13.333,5,0,5,3.3333,0;5,27.333,4,10,3.3333,5;0,4,17.846,0,3.8462,10;5,10,0,17.5,2.5,0;3.3333,3.3333,3.8462,2.5,16.346,3.333...
11 días ago | 1
| accepted
How to unfold/concatenate a 3D Matrix?
Making some guesses about the order you want, where A is your array: B = reshape(permute(A,[1,3,2]),[],21)
12 días ago | 0
| accepted
Submitted
Customizable Natural-Order Sort
Alphanumeric sort of a cell/string/categorical array, with customizable number format.
12 días ago | 29 downloads |
Submitted
Natural-Order Filename Sort
Alphanumeric sort of filenames or filepaths, with customizable number format.
12 días ago | 264 downloads |
Submitted
Natural-Order Row Sort
Alphanumeric row sort of a cell/string/categorical/table array, with customizable number format.
12 días ago | 24 downloads |
Problem in properly creating a structure to store data
The simple and efficient approach: P = 'absolute or relative path to where the files are saved'; S = dir(fullfile(P,'*.txt'));...
12 días ago | 0
| accepted
Count number of unique .mat files in a folder
The simple MATLAB approach is to use one of the histogram functions rather than a loop, e.g.: % S = dir(fullfile(rootPath,'**',...
13 días ago | 0
how to know if cell has some empty values
Where C is your cell array: any(cellfun(@isempty,C(:,3)))
13 días ago | 1
| accepted
Find index of value extracted from subset in larger set
The simple MATLAB approach is to use indexing: X = 325:400; [p,Y] = min(pvalue(X)); t = tvalue(X(Y));
14 días ago | 0
| accepted
How to use regexp in a cell array whose cells may contain cell entries
Your data: S = load('model.subSystems.mat'); model = S.model; Getting indices of nested cells which contain the requested tex...
14 días ago | 0
| accepted
How can I create structure entries in a for loop.?
Using a cell array and a structure array: C = {data1,data2,data3}; for k = 1:numel(C) S(k).max = max(C{k}); S(k).min...
14 días ago | 0
| accepted
elseif when the flag is not true
" I wanted the else condition to happen only when count1==5*N and the flag condition was not respected." Make the code explicit...
15 días ago | 1
| accepted
colon operator returns different answer in command window and script
"colon operator returns different answer in command window and script" Yes, because you called COLON with different values. "W...
16 días ago | 1
