Stephen23

Active since 2014

Followers: 11 Following: 0

Suspensa Vix Via Fit

Statistics

All

Feeds

Answered
Separate data series based on parameter within the data.
A = [1,12,13,14; 1,21,23,24; 2,32,33,34; 100,42,43,44] [G,ID] = findgroups(A(:,1)); Method one: F = @(x)A(x==A(:,1),:); C = ...

ungefär 3 timmar ago | 0

Answered
The surface area won't round to one decimal place and I don't know how to get rid of the 'e's.
https://www.mathworks.com/help/matlab/ref/format.html Do not mix up the data stored in memory with how those data are displayed...

2 dagar ago | 1

Answered
LaTeX interpreter with multiple strings or character vectors
Without even reading the XTICKLABELS documentation lets first do some basic reasoning: is a single character vector. XTICKLABEL...

3 dagar ago | 0

| accepted

Answered
Fast reorganization of cell arrays
The timings might be similar for small arrays, but try testing on larger arrays! tic % Initialize target and source arrays tg...

3 dagar ago | 0

| accepted

Answered
Left Justifying a String obtained from the formattedDisplayText() function
You would have to delete all leading space that occurs after any newline characters, e.g.: str = regexprep(str,'^[ \t]+','', 'l...

5 dagar ago | 0

| accepted

Answered
Sort array based on particular rows
format long G M = load('matlab.mat').out X = -fix(2*(0:size(M,1)-1)/11); [~,Y] = sortrows([X(:),M],'descend'); Z = M(Y,:)

6 dagar ago | 0

| accepted

Answered
Extract data using variable names
https://www.mathworks.com/matlabcentral/discussions/tips/849901-tutorial-why-variables-should-not-be-named-dynamically-eval The...

6 dagar ago | 1

| accepted

Answered
Calculations involving indexed variables and creating data tables
Lets first create some fake data (because you did not upload any sample data): T = array2table(rand(7,4),'VariableNames',{'X','...

7 dagar ago | 0

| accepted

Answered
vpa does not work with the desired amount of digits
You need to set the digits first: https://www.mathworks.com/help/symbolic/digits.html The default is 32. "returns an answer w...

7 dagar ago | 2

Answered
Alligning the output using fprintf
I = [0.0039,0.0038,0.2,0.402,0.628,0.837,1.069,1.234,1.436,1.666,1.79,2.05,1.8,1.54,1.42,1.24,1.03,0.8,0.61,0.4,0.18,0,-0.19,-0....

7 dagar ago | 0

| accepted

Answered
xlsread multiple files from multiple folders
S = dir('Y:\Projects\*\*.xls'); W = 'Logic'; for k = 1:numel(S) F = fullfile(S(k).folder,S(k).name); [num,str] = xls...

7 dagar ago | 0

Answered
Convert a cell containing structs into a single Struct
Avoid evil EVAL(). Constructing text that looks like code and then evaluating it should definitely be avoided. Using comma-sepa...

11 dagar ago | 1

| accepted

Answered
how to load and read sparse matrix from txt file to MATLAB ?
N = {}; C = {}; F = fopen('Ksparse.txt','rt'); while ~feof(F) N{end+1} = strtrim(fscanf(F,'%[^[]')); C{end+1} = spc...

12 dagar ago | 1

Answered
vector conversion from a vector of numbers to a vector cell of chars.
Y = [0,4,6]; X = cellstr(string(Y)) X = arrayfun(@num2str,Y,'uni',0) X = compose('%u',Y(:)).' X = split(num2str(Y)).' X = n...

15 dagar ago | 1

| accepted

Answered
Matlab spdiags function not do what I expect
"Why is C so different from the previous two?" Look at your code! On this line you completely overwite B with a completely diff...

15 dagar ago | 0

| accepted

Answered
Hi everybody. I'm kind of new to MATLAb and looking to get more efficient in my coding. This feels clunky to me and I feel like I could definitely shorten it. Any ideas?
Vectorize your code: https://www.mathworks.com/help/matlab/matlab_prog/vectorization.html Engine = ["LO2/LH2";"LO2/CH4";"ST...

19 dagar ago | 0

Answered
How do I print one value on one row and another on the next
Taking a wild guess: fmt = '%s %10.8f %10.8f %10.8f\r\n'; for i = 1:2:size(unit,1) fprintf(fid_1, fmt,'B',unit(i+0,1:3));...

20 dagar ago | 0

| accepted

Answered
Create multiple subtables from multiple .tsv tables
"The following code does it only for the first .tsv file. Any hint to go recursively over the 120 .tsv files? " There is nothin...

20 dagar ago | 0

| accepted

Answered
How to import multiple .mat files into the same workspace
"The problem is that the content of the most recent .mat file overwrites the previous one since the name of the arrays is always...

25 dagar ago | 1

| accepted

Answered
Run for loop 1000 times and get distribution of results
T = 1; N = 2^8; dt = 1/N; r = 1; G = 0.7; e = 0.5; R = 2; Dt = R*dt; L = N/R; M = 1000; Xem = nan(M,L); for...

29 dagar ago | 0

| accepted

Answered
define an objective function with user defined number of variables in fminunc()
"How do I define the objective function fun() such that it automatically adapts to the number of variables." fun = @(x) sum(x.^...

ungefär en månad ago | 0

Answered
Trying to create a drop down that will open a new uifigure, nothing happens when I click confirm?
Simpler solution: get rid of dda.ItemsData. Then .Value is exactly the text that is shown in the menu. This is explained here: ...

ungefär en månad ago | 1

Answered
how to read the data of type a*b?
str = '1*5 5*4 6 8 3 12 -5 9*0 7*-1'; vec = sscanf(str,'%f%*[ *]',[1,Inf])

ungefär en månad ago | 0

| accepted

Answered
Error when creating a tensor from a for loop
"Can anyone tell me what is causing this problem?" Explanation Look at the values that you are using as indices. For the 1st c...

ungefär 2 månader ago | 0

| accepted

Answered
I want to build the matrix
m = 4; n = 3; A = randi(9,n) C = [{zeros(n),eye(n)},arrayfun(@(p)A^p,1:m-1,'uni',0)]; G = cell2mat(C(1+tril(toeplitz(1:m))...

ungefär 2 månader ago | 0

Submitted

Natural-Order Filename Sort
Alphanumeric sort of filenames or filepaths, with customizable number format.

ungefär 2 månader ago | 337 downloads |

Submitted

Natural-Order Row Sort
Alphanumeric row sort of a cell/string/categorical/table array, with customizable number format.

ungefär 2 månader ago | 14 downloads |

Submitted

Customizable Natural-Order Sort
Alphanumeric sort of a cell/string/categorical array, with customizable number format.

ungefär 2 månader ago | 39 downloads |

Submitted

Custom List / Arbitrary Sequence Sort
Sort a text array into the order of custom lists / arbitrary text sequences. Sort words using alphabets that are NOT in ASCII or...

ungefär 2 månader ago | 4 downloads |

Answered
Combine multiple varying length double arrays into one timetable
"I assume there has to be a better way of doing this than iteratively calling each variable..." Note that synchronize accepts 1...

2 månader ago | 1

Stephen23

Statistics

MATLAB Answers

MATLAB Answers

File Exchange

File Exchange

MATLAB Answers

MATLAB Answers

MATLAB Answers

File Exchange

File Exchange

File Exchange

File Exchange

MATLAB Answers

Feeds