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Stephen23


Attivo dal 2014

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  • GitHub Submissions Level 3
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  • 36 Month Streak
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Risposto
Bar() very thin, does not respond to width argument
"I have a problem with Bar() function" No, you have a problem with ZEROS() function. In particular you have only specified ZERO...

circa 20 ore fa | 0

| accettato

Risposto
Remove Matlab three dots
The three dots in a box are not the continuation operator. They indicate that you have code-folding enabled and that a section o...

2 giorni fa | 0

Risposto
How to validate that one datetime is greater than another
Do NOT convert to low-precision serial date numbers! Avoid deprecated DATENUM ! Argument validation lets you define your own va...

2 giorni fa | 1

| accettato

Risposto
Matrix does not want to multiply and gives an error when I multiply a 3x3 matrix with a 3x1 matrix
Read the INV documentation! And then use the recommended function MLDIVIDE: A = [9, 29.3, 140.99; 29.3, 140.99,827.693; 140.99,...

3 giorni fa | 0

Risposto
alternative of inline function
If you want a derivative, why are you using a function handle? Using symbolic toolbox would be simpler: syms x f = x^2-2*x g ...

4 giorni fa | 1

| accettato

Risposto
Find minimum values based on unique number
P = load('matlab.mat').Prof_temp S = groupsummary(P,"Profile_num","min","Temp") plot(S.Profile_num,S.min_Temp)

4 giorni fa | 0

Risposto
Spli cell array directly at the function output
If you can modify the function to return another output argument the size of the returned cell arrays is only known when they ...

4 giorni fa | 0

Risposto
How to fix loop which over the determined index ?
"Hi guys, im trying to do looping ii 1:900 but why when u run it, it was never-ending loop." I already told you the reason why,...

4 giorni fa | 0

Risposto
Duration type doesn't preserve seconds accuracy
"Duration type doesn't preserve seconds accuracy" That is exactly what CALENDARDURATION objects are for: format longg dt1 = d...

5 giorni fa | 0

Risposto
Find min and max in groups
A = [12, 11, 12, 5, 3, 10, 5]; B = [0.1, 0.1, 0.1, 0.7, 0.4, 0.3, 0.2]; X = 1:numel(A); Fmax = @(x){x(max(B(x))==B(x))}; Fmi...

5 giorni fa | 0

| accettato

Risposto
Use save function with '-fromstruct' option to save a cell array
As the error message states, the structure must be scalar: test_file = 'test.mat'; files = {'test1.m', 'test2.m'}; T = ones(1...

5 giorni fa | 2

| accettato

Risposto
How do I convert decimals to exponents in a matrix?
To avoid potential floating point number problems convert the integers to symbolic, then perform those operations. A = [sym([2;...

10 giorni fa | 0

Risposto
How to write to csv file in shortG format?
Here is one approach that gives exactly the shortG format in your CSV file: format long G M = rand(3,5); M(1) = -6.0247123456...

11 giorni fa | 1

| accettato

Risposto
I need help with an error I get
Perhaps the input argument should be F (not f): function [posicao, velocidade, aceleracao] = atleta(t, F, M)

14 giorni fa | 1

| accettato

Risposto
When multiplying or dividing a vector by a scaler, when do you need a period before the operator?
"When multiplying or dividing a vector by a scaler, when do you need a period before the operator?" Lets consider multiplying. ...

14 giorni fa | 0

Risposto
Observations being read as number of columns instead of rows
Perhaps because the data are (complex conjugate) transposed here: 'ValidationData', {stan_x_val', stan_y_val'}, Note that yo...

14 giorni fa | 1

| accettato

Risposto
Need help figuring out why this nested function is not working
"File not found" You are not providing FOPEN and READMATRIX with the filepath, so they cannot find the file on your computer. P...

14 giorni fa | 0

| accettato

Risposto
Can't seem to replace values in matrix meeting criteria, although the correct row,col coordinates are found
Use SUB2IND: idx = sub2ind(size(img),row,col); img(idx) = 1; The section "Indexing Matrices with Two Subscripts" here: https...

16 giorni fa | 0

| accettato

Risposto
Compare two files and remove any lines in the second file when they match values found in the first file
lines1 = [1,2,3,4;2,4,6,7;2,5,7,8;6,7,4,6] lines2 = [2,4,6,7;2,5,7,8] out = setdiff(lines1,lines2,'rows')

16 giorni fa | 0

| accettato

Risposto
A more efficient or compact way to sort strings that contain dates
a = [... '123_abc_01_202403020000_202403022359.txt'; '123_abc_01_202403040000_202403042359.txt'; '123_abc_01_2024...

17 giorni fa | 1

| accettato

Risposto
Portion of code containing my custom functions is hidden and I cant access it.
The feature is called code folding: https://www.mathworks.com/help/matlab/matlab_prog/edit-and-format-code.html#brazeg3-1 http...

17 giorni fa | 1

Risposto
How can I access the value of a string variable? I need to construct a file path from a string variable, but keep getting the variable name and not the string.
It works perfectly, exactly as you showed in your question: directory_name = "directory1"; f = fullfile('/Users/me/ch4', direc...

18 giorni fa | 1

Risposto
Appending data when extracting nested fields as individual variables
The simple and efficient MATLAB approach using two comma-separated lists (no loops are required!): first100 = load('frames.mat'...

18 giorni fa | 0

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Inviato


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

18 giorni fa | 378 download |

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Inviato


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

18 giorni fa | 25 download |

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Inviato


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

18 giorni fa | 52 download |

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Inviato


Custom List / Arbitrary Sequence Sort
Sort a text array into the order of custom lists / arbitrary text sequences. Sort words with Latin-, Greek-, and Cyrillic-based ...

18 giorni fa | 5 download |

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Risposto
char array to numeric array
"I was wondering if there was a better way of doing this?" Of course, use READTABLE (or READMATRIX): unzip tab_file_table.zip ...

19 giorni fa | 0

| accettato

Risposto
I'm trying to convert the text into binary and then i want to make the 4 bits chunks.
message = 'Hello world'; A = dec2bin(message, 8) B = reshape(A.',1,[])

19 giorni fa | 0

Risposto
How to stop double printing text using sprintf ?
Problems: 1- This is the relevant code: VariantModel = compose('%d', 1:height(VariantIDPassed)); .. writefile(VariantModel{i...

20 giorni fa | 0

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