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Stephen Cobeldick


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6,171 total contributions since 2014

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Answered
Trying to modify a vector by removing alternate elements
There is no point in defining n when it always has exactly the same value as the loop iteration variable i. Get rid of one of th...

4 hours ago | 1

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Answered
How to solve pre-allocating array?
Using numbered variables is a sign that you are doing something wrong. Accessing numbered variables is one way that beginners f...

20 hours ago | 1

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Answered
How to pass a matrix (m, 1) to (m / 2.2)
>> reshape(V,2,[]).' ans = 1 2 3 4 5 6

3 days ago | 1

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Answered
How to generate 1 cross zero structure in Matlab??
B = reshape(A,1,0)

3 days ago | 1

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Answered
How to call a created function in a different function
Download my FEX submission num2ordinal and use it together with func2str: function out = myNewFunc(fun) val = str2double(regex...

5 days ago | 0

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Answered
flip an array with the use of vectors
"Any suggestions?" Use indexing (which in MATLAB starts from 1): >> a = [1,7,5,9,3,2,4,1] a = 1 7 5 9 3 2 4 ...

7 days ago | 0

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Answered
Using Read Table with a predefined Table size
Accessing files via the OS is slow, note that creating an intermediate file requires accessing a file minimum three times. A sim...

7 days ago | 1

Answered
How can I dynamically index into a nested struct that contains cell arrays
Essentially you are attempting to write a MATLAB parser using MATLAB. Such a task is not trivial, but for a very limited subset ...

7 days ago | 0

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Answered
How can I delete two or more elements in a vector?
>> A = [1,1,2,3,10,7,10,1,5,3]; >> U = unique(A); >> Z = U(histc(A,U)==1) Z = 2 5 7

8 days ago | 1

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Answered
inputs of multi-variable functions?
"Is there a right order for input variables in a function?" Yes: MATLAB function inputs are positional: The 1st input provided...

8 days ago | 0

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Answered
how to rearrange cell array with the grouped sequence
>> C = {21,3,'1';31,2,'1 1';25,1,'2 2 1 1'} C = [21] [3] '1' [31] [2] '1 1' [25] [1] ...

9 days ago | 0

Answered
How to simplify code which reads multiple files
You don't need to repeat the entire code, just the dir call is enough: theFiles = [... dir(fullfile(myFolder, '*ABC*.csv')...

9 days ago | 0

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Answered
imshow not working when going from unit8 to double
Most likely because you did not scale the image when you converted the type. uint8 images are treated as having values from 0 t...

10 days ago | 0

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Answered
Looping a function with different inputs and storing multiple outputs.
The very simple solution is to loop over indices, and not over data (like you are doing): V1 = 0.5:1:2.5; % data! V2 = 0.5:1:2...

10 days ago | 1

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Answered
Save and Load .mat files with different names that numerically go up automatically. Maybe in a for loop?
"...as long as there is a way to load multiple of these in one go, without them all overwriting each other as fvalagg" This is ...

10 days ago | 1

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Answered
How to use cellfun?
fun = @(x,y) fminbnd(@(c0)objfunc(y,deg(c0,x,'other input parameters')),cm,cM); [C,V] = cellfun(fun,XM,YM,'Uni',0)

10 days ago | 1

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Answered
Anonymous function to calculate a sum
>> fun = @(x,n) x + sum(x.^(2:2:2*n) ./ factorial(2:2:2*n)); >> fun(3,5) ans = 12.066 Compare against your expansion: >> x ...

10 days ago | 2

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Answered
how to open such files "File B -ASCII" saved from MATLAB?
The -ASCII option saves a double array as a text file with space delimiters. This means: Any text editor can open that text fil...

10 days ago | 1

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Answered
How to read rows of data in .csv file and turn them into arrays?
Notes to consider when importing a large file: Importing as character and then doing any kind of text manipulation before conve...

10 days ago | 0

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Submitted


Hyphenate
Word hyphenation using Franklin Mark Liang's algorithm (aka Knuth-Liang algorithm). Used in TeX.

11 days ago | 6 downloads |

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Answered
Display Value of a Slider in a text box without GUIDE
If you want the slider to update something (text, plot, anything) as it moves, then you will need to add a listener: https://ww...

11 days ago | 0

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Answered
Parula color on matlab 2013a
https://www.mathworks.com/help/matlab/ref/colormapeditor.html

11 days ago | 1

Answered
Startup path issue creating variable errors
"How is it possible that I don't have a startup.m file on a clean install" Because it is a clean install: MATLAB does not creat...

12 days ago | 0

Answered
Function is not reading input from main script
You need to parameterize your function calls: https://www.mathworks.com/help/matlab/math/parameterizing-functions.html You nee...

12 days ago | 0

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Answered
'combnk' enumeration of combinations
>> [X,Y,Z] = ndgrid([-1,0,1]); >> M = [Z(:),Y(:),X(:)] M = -1 -1 -1 -1 -1 0 -1 -1 1 -1 0 -1 -1 0 ...

12 days ago | 0

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Answered
Problem with if-elseif when conditions contain several strings
"So I don't need a solution, but an explanation, why this occurs..." The first thing to do when trying to understand what your ...

12 days ago | 1

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Answered
How to read a specific number in a text file containing a mixture of strings and numbers?
The regular expression doesn't need to be so complex: >> chr = webread('http://tgftp.nws.noaa.gov/data/observations/metar/decod...

12 days ago | 0

Answered
How to load multiple specified variables in a specified mat file?
Your code does not make much sense: you added single quotes around the variable name (making it a literal string), you removed t...

12 days ago | 0

Answered
If B is a matrix,what is the difference between B(1:end) and B(:)
Given a matrix B: B(1:end) uses linear indexing. The size of the output is the same as the size of the index (which in your exa...

13 days ago | 2

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Answered
Variables accessible in unrelated files?
"Can someone explain to me how this is possible..." Because you have written scripts. Scripts share the same workspace that the...

14 days ago | 0

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