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Stephen23


Active since 2014

Suspensa Vix Via Fit

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  • Most Accepted 2023
  • Most Accepted 2022
  • Personal Best Downloads Level 5
  • Editor's Pick
  • Most Accepted 2021
  • Grand Master
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  • 5-Star Galaxy Level 5
  • GitHub Submissions Level 3
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  • 36 Month Streak
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Answered
cheatsheet for dealing with structures?
"im trying to get all timestamps "timestamp" (for finding duplicate fields) of sub stucture "trainLocations" from every first ce...

22 hours ago | 0

Answered
importing multiple excel workbooks with multiple sheets into a cell array.
Based on my comment to your previous question: P = 'D:/foo/bar'; % absolute or relative path to the parent directory S = dir(f...

2 days ago | 0

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Answered
How to get specified data in table
Where T is your table: idx = strcmpi(T.OutputCase,'Pushover-x'); out = T(idx,{'StepNum','GlobalFX','GlobalFZ'}) https://www.m...

3 days ago | 0

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Answered
What is the fastest way to do repeated element wise matrix multiplication?
Reduce the number of operations inside the loop by replacing TIMES and SUM with MTIMES (of course adjusting the matrix/vector or...

3 days ago | 0

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Answered
Dealing data with text and numerical in .txt file
T = readtable('data.txt', 'Delimiter',{' ',':',','}, 'MultipleDelimsAsOne',true)

5 days ago | 0

Answered
Struct field name with space or special character
"Is there a way to have space in structure field names?" No.

5 days ago | 2

Answered
Editing csv data and convert it into a table
Lets fix the file so that it is formatted as a proper CSV file. Then importing it is trivial. S = readlines('EnergyLIS.csv') % ...

6 days ago | 2

Answered
Convert double to datetime when importing .csv
T = readtable('Trace.csv', 'Delimiter',';', 'VariableNamingRule','preserve') P = wildcardPattern + "(X)"; F = @(n) datetime(n,...

7 days ago | 0

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Answered
how to automate this manual code containing if else conditons?
S = [1 1 1 1 2 2 2 2 2 2]; V{1} = [20 10 40 50 40 30 20 10 20 30]; V{2} = [10 20 30 20 10 30 20 40 20 30]; M = vertcat(V{:});...

7 days ago | 1

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Answered
Creating a colorbar in Matlab
"Is this colorbar automatic colors? As in Matlab picks its default colours?" Yes. The default colormap is described here: http...

8 days ago | 0

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Answered
Array indices must be positive integers or logical values. Error
x1= -2:0.01:2; % decimal comma -> point f1 = x1.^2-1; f2 = sin(x1); h1 = plot(x1,f1,'b',x1,f2,'r') % removed superfluous inde...

8 days ago | 0

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Answered
calling a function with struct inputs
"How can I call such a function" Because it neither displays anything nor returns any output it is not a very interesting funct...

9 days ago | 1

Answered
using "&" with logical array
"why is not correct using &?" Who says that it is not "correct" ? What you show is not a code error (underlined in red), it is ...

9 days ago | 0

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Answered
How do I control the format of the date stamp on a plot axis with datetime values?
That is named the secondary label and has some rather rudimentary controls, e.g.: https://www.mathworks.com/help/matlab/ref/xse...

9 days ago | 0

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Answered
I don't know how to fix this, and I honestly don't know what caused this with chebfun
"...I honestly don't know what caused this with chebfun" You modified the function (perhaps accidentally) by adding some code o...

9 days ago | 0

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Answered
A bug? input: 1/0 output: -Inf
"A bug? input: 1/0 output: -Inf" Not a bug. Because your value x is actually negative zero not positive zero: https://en.wikip...

9 days ago | 3

| accepted

Submitted


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

10 days ago | 16 downloads |

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Submitted


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

10 days ago | 11 downloads |

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Answered
Weird display in date plotting
Lets convert your data into DATETIME (as they should be) and PLOT them: Date = {'2009-12';'2010-01';'2010-02';'2010-03';'2010-0...

10 days ago | 0

Answered
load .mat files in loop
Create some fake data files (it is much better when you provide some data files for us to work with): X=1; save 'S_out_02-10-20...

11 days ago | 1

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Answered
Not able to save a ".mat" file when the excel workbook is fetched within a function
"I am trying to fetch an excel sheet from a function and save it as a ".mat" file" That task is much easier and much more relia...

11 days ago | 0

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Answered
error Unrecognized function or variable help me please :(!
That really is very bad data design: one single numeric array would be much better than storing lots of numeric scalars in a hug...

12 days ago | 0

Answered
Put the separator every thousands
Here are some more interesting testcases (with both one hundred million as well as one billion): S = ["100000000";"1000000000";...

12 days ago | 0

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Answered
Is there a way to "vectorize" this segment of code?
S = string(randi([0,9], 5,4)) D = str2double(join(S,""))

12 days ago | 1

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Answered
Renaming group of files
P = '.'; % absolute or relative path to where the files are saved. F = 'image*.bmp'; % filename with wildcard and file extensio...

13 days ago | 0

Answered
How to have a user select a file and then matlab automatically go into multiple subfolders and pull out a multiple text files and import them in as a table
Let DIR to do the work for you! DIR will happily search in subfolders for specific files, if you tell it to: P = uigetdir('C:\u...

13 days ago | 0

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Answered
How to use setvaropts for strangely-formatted text file
First lets see if READTABLE et al can ignore those space characters on a simple test file: type testformat.csv readtable('test...

13 days ago | 1

| accepted

Answered
Unable to comprehend "time" function output
"Is this output returning the difference between time components of calenderDuration function or only time duration between time...

13 days ago | 1

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Answered
Extract Numbers from Mixed string
B = 'single snap detector: 1 S2L:232867 S2R:3151621 S3L:0 S3R:0'; Method one: SSCANF: V = sscanf(B,'%*[^:]:%d') % very efficie...

13 days ago | 1

Answered
How to call a separate function to a new program
"This was my attempt, that went poorly." The basic cause is your continued usage of INPUT everywhere, and hiding the function b...

13 days ago | 0

| accepted

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