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Stephen Cobeldick


5.900 total contributions since 2014

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Answered
Saving the content of a cell array in different matrices automatically
I just skimmed through the BRAPH toolbox documentation from this website: http://braph.org/manual/introduction/ There is nothi...

etwa 11 Stunden ago | 0

Answered
Not enough input arguments
integral(@f,-1,4) % ^^ the first input needs to be a function handle! https://www.mathworks.com/help/matlab/function-ha...

etwa 12 Stunden ago | 0

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Answered
Create array address using for loop
Just use cell arrays: N = 5000; A = cell(1,N); B = cell(1,N); C = cell(1,N); for k = 1:N [A{k},B{k},C{k}] = imread('ff...

etwa 12 Stunden ago | 0

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Answered
Fill gaps using Nan in for loop
Using two accumarray calls: >> data = [0,50;1,100;2,200;3,300;5,500;6,600;7,700;10,1000;0,30;2,20;6,40] data = 0 50...

etwa 17 Stunden ago | 0

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Answered
could anyone help me how to display all the numbers inaddition to the numbers present.
>> A = [1,2;1,3;2,5;2,4;3,5;4,6;4,5] A = 1 2 1 3 2 5 2 4 3 5 4 6 ...

ein Tag ago | 0

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Answered
How can I find a row in a matrix in which all elements apply to a relational operator?
>> idx = all(A>0.25,2) % logical index idx = 0 0 0 1 0 0 >> find(idx) % subscript index a...

ein Tag ago | 0

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Submitted


Customizable Natural-Order Sort
Natural-order sort of a cell array of strings, with customizable numeric format.

ein Tag ago | 27 downloads |

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

ein Tag ago | 224 downloads |

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Submitted


Natural-Order Row Sort
Natural-order row sort of a cell array of strings, with customizable numeric format.

ein Tag ago | 16 downloads |

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Answered
str2num not working on array
It would be simpler to use a structure (in this example I entered "Red" into the dialog box): >> S.red = [1,0,0]; >> S.green...

ein Tag ago | 0

Answered
Using strfind to find character index in word
>> HangWord = 'each'; >> Guess1 = 'e'; >> index = strfind(HangWord, Guess1) index = 1

5 Tage ago | 0

Answered
Variable in Text [Matlab]
You can use dynamic fieldnames: https://www.mathworks.com/help/matlab/matlab_prog/generate-field-names-from-variables.html Alt...

5 Tage ago | 1

Answered
Error using accumarray First input SUBS must contain positive integer subscripts.
"I have already read all questions and answers about it here, cant figure out whats wrong." After reading many answers, you sho...

6 Tage ago | 0

Answered
Find cells that start with text and combine it with next cell
>> C = {'Test1';'10v';'20va';'30v';'50v';'65v';'Test2';'80v';'100v'} C = 'Test1' '10v' '20va' '30v' '...

7 Tage ago | 1

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Answered
Move selected column from a matrix to another
Replace the loop with this: idx = M(310,:)>=Xmin & M(310,:)<=Xmax & M(620,:)>=Ymin & M(620,:)<=Ymax; x(:,idx) = M(:,idx); Not...

7 Tage ago | 0

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Answered
Create variable from an excel entry
This should get you started (note that I named the variable out rather than Plot, as it is bad practice to use names which only ...

7 Tage ago | 0

Answered
Main diagonal operations problem
Using Roger Stafford's FEX submission randfixedsum (must be downloaded first): https://www.mathworks.com/matlabcentral/fileexch...

7 Tage ago | 2

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Answered
Mean matrix of different size matrices in one cell array
C = cellfun(@(m)mean(m,1),A, 'uni',0); B = cat(1,C{:})

7 Tage ago | 0

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Answered
Position of the left nearest one value in a vector
>> v = [0,0,1,0,0,0,1,1,1,1,0,0,1,1,1,0,0,1,0] v = 0 0 1 0 0 0 1 1 1 1 0 0 ...

8 Tage ago | 0

Submitted


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

8 Tage ago | 9 downloads |

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Answered
remove repeated rows to produce two new matrices
An old-fashioned way: a = [0.359883241;0.277815278;0.247562838;0.26249033;0.226989582;0.213157025;0.207067988;0.204762201] b =...

8 Tage ago | 0

Answered
Count how many elements are present inside arrays
>> A = hist(P,V) A = 2 2 2 1 2 1 2 2 2 2 1 1 1 >> B = hist(F,V) B = 2 1 2 1 2 0 2...

8 Tage ago | 0

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Answered
How can I prealloate a comlex-valued matrix?
"How can I prealloate a comlex-valued matrix?" A = complex(zeros(10000,500)); ... your loop here https://www.mathworks.com/he...

9 Tage ago | 1

Answered
How to change function coefficients?
Following the guidelines given in the MATLAB documentation: https://www.mathworks.com/help/matlab/math/parameterizing-functions...

9 Tage ago | 1

Answered
mkdir and simulations problems
You can download my FEX submission nextname: https://www.mathworks.com/matlabcentral/fileexchange/64108-next-available-filename...

9 Tage ago | 1

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Answered
How to set up Vectorization properly?
>> reshape(bsxfun(@plus,(1:4).',0:16:16*3),1,[]) ans = 1 2 3 4 17 18 19 20 33 34 35 36 49 50 51 52 MATLAB ve...

9 Tage ago | 0

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Answered
Image display with uint8 and double
It seems that you have a "binary" image with values 0 and 1, which is stored as uint8. Because floating-point images are assume...

9 Tage ago | 1

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Answered
could anyone help me how to display the position of all the numbers present in matrix.
A simple method that includes all numbers (because zeros are also numbers): >> A = [1,2,3,0;5,6,0,8;9,10,11,12] A = 1 ...

9 Tage ago | 0

Answered
Finding the average by excluding some values
>> Area= [ 1 2 3 4 5 1 1 1 1 12 2 3 4 5 121 145 190 500]; >> mean(Area(Area>10)) ans = 193.6

10 Tage ago | 0

Answered
storing data in a matrix from a nested loop
No loops required: >> d1 = [0,0,2;0,0,-2] d1 = 0 0 2 0 0 -2 >> d2 = [0,0,15;0,0,13] d2 = 0 ...

10 Tage ago | 1

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