Stephen Cobeldick

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7.361 total contributions since 2014

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Submitted

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

21 minuti ago | 62 downloads |

Submitted

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

21 minuti ago | 355 downloads |

Submitted

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

21 minuti ago | 23 downloads |

Answered
Any value (different values) I enter for TOLERANCE and ITERATION gives the same results(Answer( . It is supposed to give different answers . I don't know why this is occurring.
tol = 0.001; n = 100; f = @(x) (x+1-2*sin(pi*x)); fplot(f,[0,0.5]) a = 0; b = 0.5; pre=0; for i = 1:n c = (a+b)/...

circa 4 ore ago | 0

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Answered
I need to create two test and train folder from one parent folder (in the same directory), I wrote the code, but file couldn't be moved. Please Help!!
P = 'absolute/relative path to where the files are saved'; S = dir(fullfile(P,'*.jpg')); N = numel(files); B = randperm(N) > ...

1 giorno ago | 1

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Answered
Using previous value to get the next in for loop
"But this makes my command window seemingly run forever." So far no one has actually addressed why your code is inefficient, in...

2 giorni ago | 2

Answered
How to reshape a matrix (something that can't be done with reshape function)
A = [1,4,7,10;2,5,8,11;3,6,9,12] nmc = 2; % output number of columns nmr = 3; % output number of rows per "group" B = reshape...

2 giorni ago | 0

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Submitted

Next Available Filename
Returns the next unused file or folder name. The name is created by incrementing a numbered suffix.

3 giorni ago | 10 downloads |

Answered
find all sequences between delimiters in an array
v = [1,1,0,2,0,2,1,2,1,1,1,0,2,1,2,0,0,1,1,1,1,1,1,2,1,0]; [begIdx,endIdx,~,match] = regexp(sprintf('%d',v),'2.*?0')

3 giorni ago | 1

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Answered
User defined function that evaluates anonymous function with variable number of inputs
Your mistake was deciding to use eval, which is one way that beginners paint themselves into a corner with slow, inefficient, co...

3 giorni ago | 0

Answered
Array indices must be positive integers or logical values
"every element is positive and >0" Nope: S = load('data_req.mat') find(S.IntOutAdr==0)

4 giorni ago | 1

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Answered
Storage elements from matrix in other one, with indexing.
The MATLAB approach: A = [8,3,0,2;9,6,1,4;10,6,2,1;1,6,2,8] v = [2,4]; out = A(v,v)

4 giorni ago | 1

Answered
Extend a string within a for loop by values from switch case
Forget about C. The MATLAB approach is to work with vectors and matrices (which is where the name MATLAB comes from): inp = 'A...

4 giorni ago | 1

Answered
Control Dynamically Multi-Dimension Matrix on fprintf
A(:,:,1) = [1,2,4;5,2,1;6,2,1]; A(:,:,2) = [4,6,1;8,0,3;1,2,4]; A(:,:,3) = [5,8,2;4,4,4;1,0,0]; D = ndims(A); F = repmat(',%...

4 giorni ago | 0

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Answered
Apply a change on all the double variables of a .mat file at once
"Do you have any idea on how I can apply a change on all the double variables of a .mat file at once." Easy: load into an outp...

6 giorni ago | 0

Submitted

Interactive Regular Expression Tool
Develop and refine regular expressions in an interactive figure that shows all of REGEXP's outputs.

7 giorni ago | 18 downloads |

Answered
make a matrix from a structure field.
Where S is the name of your structure: out = vertcat(S.ch_nme2) https://www.mathworks.com/help/matlab/matlab_prog/comma-separa...

7 giorni ago | 1

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Answered
Resolving Matrix dimensions must agree
Use strcmp or strcmpi to check if two text strings match or not: if strcmp(A,B) Alternatively you could use one switch stateme...

8 giorni ago | 1

Answered
read a large number of hdf5 files with for loop and store in new variables
"I want to make new variables as I have some post proccesing manipulation to do on these data." You might want to do that, but ...

8 giorni ago | 0

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Answered
How can I make the difference or subtraction between two scalar vectors?
x1 = [1,2,5,8]; x2 = [2,1,0,6]; setdiff(x1,x2) https://www.mathworks.com/help/matlab/set-operations.html "and do we choose v...

8 giorni ago | 0

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Answered
How to convert cell array to float array?
M = [... as a numeric matrix (e.g. CELL2MAT or STR2DOUBLE) 0 1 0 0 0 0 1 0 0 0 0 0 1 0 1 1 1 0 1 1 1 0 1 1 1 0 0 1 0 1 1 1 0 ...

8 giorni ago | 0

Answered
How to internally change decimal separator while importing data from a csv?
Do NOT use CD to access data files: it is more efficient to use absolute/relative filenames (with FULLFILE). To import a CSV (a...

8 giorni ago | 1

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Answered
Concatenate 3-D matrix in a for loop
Where C is a cell array containing all of your arrays: out = cat(1,C{:}); https://www.mathworks.com/help/matlab/matlab_prog/co...

8 giorni ago | 0

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Answered
why is the variable order in a user defined function important in lsqnonlin optimisation?
"Why does the order in the self defined function important for lsqnonlin fitting?" In some languages inputs can be specified by...

9 giorni ago | 1

Answered
Finding and reporting the variable (Single number) of several with the largest value
The MATLAB approach is to use vectors/matrices (which is where the name MATLAB comes from): V = [0.0076,0.46,0.05]; C = ["A","...

9 giorni ago | 0

Answered
Comma separated function output requests
Is this documented? [A{1:2}] = myone(1,2,3,4) % okay [B{1:1}] = myone(1,2,3,4) % okay [C{1:0}] = myone(1,2,3,4) % NARGOUT==0 ...

9 giorni ago | 1

Answered
how can i avoid Nan in matlab expression and return 0
"if X is positive it must give 10, If X is negative it must give 5, If X is zero, it must give 0." X = randi([-3,3],1,9) % rand...

9 giorni ago | 0

Answered
Sorting operation on a string matrix
s = ["1 9:53.3"; "3 9:23.5"; "5 2:16.2"; "2 2:45.6"; "4 12:01.2"]; [~,X] = sort(str2double(extractBefor...

9 giorni ago | 1

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Answered
Assigning strings from struct variable
Use a comma-separated list: https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html https://www.mathworks...

10 giorni ago | 2

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Answered
Textscan Importing Multiple Inputs From One Text File
S = readlines('ResultA3forMatlabv2.txt'); F = @(s)sscanf(s,'%f,'); C = arrayfun(F,S,'uni',0) C{1:3} % the first few lines

10 giorni ago | 0