Stephen23

Active since 2014

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Answered
How to set variable names using Readtable with hierarchical categories (Excel file with merged cells / multiple header rows)
In lieu of a sample data file I created my own (attached) which looks like this (not all columns shown): If you must keep tha...

5 days ago | 2

| accepted

Answered
Is the Ordering of the Output from combinations() Documented, Repeatable, and Sensible?
1. "Is the ordering of the output rows from combinations documented?" Implicitly. The COMBINATIONS description states "These c...

9 days ago | 0

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Answered
Cell array Filtering when using readlines
Do not store lots of scalar strings in a cell array, doing so makes processing them harder: https://www.mathworks.com/help/matl...

10 days ago | 0

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Answered
Why READTABLE skips the first line ?
"Why READTABLE skips the first line ?" Possibly because all of the text are shared strings, which perhaps confuses the READTABL...

10 days ago | 0

Submitted

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

10 days ago | 10 downloads |

4.8 / 5

Answered
Using CurrentPoint in UIAxes in AppDesigner with timedate x axis
Because all of the data are returned in one array any datetime values are converted into a numeric equivalent (i.e. to provide o...

11 days ago | 2

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Answered
More unexpected behavior multiplying an array with a double
"I am getting unexpected results when I muliply an array by a double" It is not unexpected, because your data are not what you ...

12 days ago | 1

Answered
How can I get unique entries and their counts and place back into the table?
"I think is due to (x) not being defined or non existing. " No, it is because you invented some syntax when defining the anonym...

21 days ago | 0

Submitted

Number to Scientific Prefix
Convert a numeric value to SI-prefixed text (aka engineering / metric prefix). Bonus: binary prefixes!

22 days ago | 12 downloads |

4.8 / 5

Submitted

Scientific Prefix to Number
Convert SI-prefixed text (aka engineering / metric prefix) into numeric values. Bonus: binary prefixes!

22 days ago | 2 downloads |

5.0 / 5

Answered
MATLAB loads file it cannot find
"How is it possible, that MATLAB can load a file that it cannot find?" Because of what you did: "...the folder where the files ...

22 days ago | 1

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Answered
Read .txt file with dots in filename
"All my current tries using for example "load" or "readmatrix" failed since Matlab always assumes everything after the first dot...

22 days ago | 1

| accepted

Answered
How to sync Matlab file location and current pwd of command window?
Do NOT use CD for this. This is exactly what the MATLAB Search Path is for: https://www.mathworks.com/help/matlab/matlab_env/w...

1 month ago | 1

Answered
Matrix size error using integral
"which makes no sense since I'm multiplying scalars." Nope, you aren't. "Why is this?" Because you are multiplying vectors. T...

1 month ago | 0

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Answered
Problem with formatting operators - textscan
txt = '26 mins 2013-09-17 09:01:45, 29 mins 2013-09-18 16:53:12, 33 mins 2013-09-19 18:24:27,'; Directly obtaining the intege...

1 month ago | 0

Answered
why textscan can't parse the time like this
"why textscan can't parse the time like this" Because you have a delimiter right in the middle of your datestamp. Clearly that ...

1 month ago | 0

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Answered
how can i get the values of y1, y2? i am only getting the graph.
Return them as function outputs: https://www.mathworks.com/help/matlab/ref/function.html https://www.mathworks.com/help/matlab...

1 month ago | 0

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Answered
How to arrange elements in one array to match the position of elements in a second array?
You could find the mapping with ISMEMBER: https://www.mathworks.com/help/matlab/ref/double.ismember.html A = [1,5,3,2,4,4,2,2,...

1 month ago | 1

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Submitted

Number to Words
Convert a numeric to a string with the English name of the number value (GB/IN/US).

1 month ago | 4 downloads |

5.0 / 5

Submitted

Words to Number
Convert English number name/s written in a string to numeric value/s (GB/IN/US).

1 month ago | 3 downloads |

0.0 / 5

Answered
Hi, my loop function is not working and giving me index error in my member stiffens matrix. any idea what is the issue? thank you
% define coordinates of each nodes Coord_nodes = [0,0; 10,0; 10,10; 0,10]; % define connection of each element Connect_elemen...

1 month ago | 0

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Answered
installing MAT-file version 7.3
From the SAVE documentation: save("tmp\wavedata_0301","wavedata","-v7.3"); % ^^^^^^^ https:...

1 month ago | 0

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Answered
Select first three elements of double inside cell array
C = {[56,54,36,35];[58,56,55,36];[89,60,56,45]} D = cellfun(@(v)v(1:3),C,'uni',0)

2 months ago | 0

| accepted

Answered
How can I import multiple .out files in a single folder as separate tables or arrays?
unzip reports P = '.'; % absolute or relative path to where the files are saved S = dir(fullfile(P,'vxw*.out')); for k = 1:nu...

2 months ago | 2

| accepted

Submitted

Numeric to Ordinal-String
Convert numeric values to a string array of integers with ordinal suffixes. Fully vectorized!

2 months ago | 4 downloads |

5.0 / 5

Answered
Moving mean of a vector with unsorted values
You will need to interlace your data points before calling MOVMEAN. For example: xL = +15.0:-1:-15.0; xR = -14.5:+1:+14.5; yL...

2 months ago | 0

Answered
How to make str2double recognize comma delimited numbers?
Using SSCANF will likely be more efficient than relying on regular expressions: T = readtable('ExampleExcel.xlsx') F = @(t)ssc...

2 months ago | 1

Answered
Interpolation problems in multidimensional space
You do not have gridded data, so all of the attempts with GRIDDEDINTERPOLANT will not work. Using NDGRID does create gridded dat...

2 months ago | 1

Answered
Formatting Vectors using fprintf
R = [6640.441; 0; 0]; C = compose('%7s[%10.3f km]',["";"R = ";""],R); fprintf('%s\n','A) Position with respect to the earth in...

2 months ago | 1

| accepted

Answered
imagesc output: how to re-update the matrix image only, but keep other things intact, including colorbar, axis tick, axis label, annotation, text...?
"how to re-update the matrix image only, but keep other things intact, including colorbar, axis tick, axis label, annotation, te...

2 months ago | 1

| accepted