# Stephen23

Active since 2014

Followers: 6   Following: 0

Suspensa Vix Via Fit

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Saving a Structured Array (containing plot parameters) to a mat file
Explanation: your structure is not scalar: it has nlines elements. The -struct option only works with scalar structures. Error ...

1 day ago | 0

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Does Matlab's integral function pass the integration variable to the function handle one scalar at a time or as a vector?
"Does Matlab's integral function pass the integration variable to the function handle one scalar at a time or as a vector?" By ...

1 day ago | 0

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How avoid exponential notation in compose
"How avoid exponential notation in compose" Explanation: the %d conversion is for integer values. Are all of your data integer ...

1 day ago | 0

save tic toc in duration style
tEnd = 60*60+20 txt = mytime(tEnd) writelines(txt,'myfile.txt') Checking: type myfile.txt function str = mytime(toa) spl...

6 days ago | 0

Combing Date and Time Variables into ONE DateTime Vector
If you have any influence on the data design, then making these changes would simplify your data processing: save the data in c...

7 days ago | 0

Readtable Delimiters on two similar files gives differing result
"One thing for sure is that all my data is under the line begining with "Point"" tA = myread('A.txt') tB = myread('B.txt') fu...

7 days ago | 2

How to write data from a Cell Array as multiple columns in a text or CSV file?
This actually works with vectors of different lengths (as your question shows): C = {[0;1;2;3], [4;5;6;7;8;9]}; D = {}; for k...

7 days ago | 0

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Why is this simple loop not working?
"I don't know why this is happening." The problem is very simple: you do not extend x in the same way that you extend y and z. ...

8 days ago | 2

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Having a string call another string
txt = input("Enter your string: ","s"); disp("Your string was: " + txt)

8 days ago | 1

Extracting data from struct as array
S(1).a = 1:10; S(2).a = 11:20; S(3).a = 21:30; M = vertcat(S.a) or M = cat(1,S.a) https://www.mathworks.com/matlabcentra...

12 days ago | 1

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convert double to signed int
A = 40000 B = typecast(uint16(A), 'int16')

14 days ago | 0

Dynamic matrix columns combinations
"any idea on to how overcome this? Do I need to write a combination function myself?" Use NDGRID with some comma-separated list...

14 days ago | 0

How to split/segment csv file into multiple sections?
P = '.'; % absolute or relative path to where the file is saved F = fullfile(P,'test_file.csv'); O = detectImportOptions(F,'Va...

16 days ago | 1

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"how i do like this, can you show me please, thank you." P = 'absolute or relative path to where the file is saved'; F = fullf...

16 days ago | 1

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How to produce an array that displays the common data values in other arrays?
A = [1,1,0;1,1,1;0,1,1] B = [1,0,1;0,1,0;1,1,1] C = [1,1,1;1,1,0;1,1,1] D = double(A & B & C)

21 days ago | 0

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Matlab code to delete contents of a subfolders
P = 'absolute or relative path to where the project folders are'; S = dir(fullfile(P,'**','Inputs','*.*')); for k = 1:nunel(S)...

21 days ago | 0

How to convert a 1x1 struct to double matrix (error using pan tompkin)?
"Originally, I didn't put the semicolon, I only added it because MATLAB error system recommended it. I did remove it and there's...

23 days ago | 1

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What is wrong with this code for finding out the number of significant digits after decimal?
The least unexpected number of non-zero fractional digits aka decimal places (limited to 15 significant figures of the binary fl...

24 days ago | 0

Not enough input arguments
"Why I can't get the values from matrix x in function MyInput() to use in another function?" Basically because you did not call...

25 days ago | 0

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Reading Multiple Excel Files, Analyzing and Indexing
Use indexing into the structure array that you already have (i.e. the output from DIR): P = 'absolute or relative path to where...

28 days ago | 0

there is no plotting appearance
"there is no plotting appearance" Because you are plotting exactly one data point. By default there PLOT shows lines (which con...

1 month ago | 0

Interpolating for multiple curves and finding the y axis value
Forget about having lots of separate variables in the workspace. Learn to use matrices! x = [0,7.1702,9.1995,9.5716,11.3641,12....

1 month ago | 0

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Change date from cell to number inside array
" How do I change it from a cell to a numeric format I can use?" Use the correct type of indexing: if itin_full{1,6}>=0.9 % ...

1 month ago | 0

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help using bsxfun to multiplay different size matrixes
tmp = bsxfun(@times, norm_mode, reshape(fields(:,3),1,1,[]))

1 month ago | 0

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Bar() very thin, does not respond to width argument
"I have a problem with Bar() function" No, you have a problem with ZEROS() function. In particular you have only specified ZERO...

1 month ago | 0

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How to validate that one datetime is greater than another
Do NOT convert to low-precision serial date numbers! Avoid deprecated DATENUM ! Argument validation lets you define your own va...

1 month ago | 1

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Matrix does not want to multiply and gives an error when I multiply a 3x3 matrix with a 3x1 matrix
Read the INV documentation! And then use the recommended function MLDIVIDE: A = [9, 29.3, 140.99; 29.3, 140.99,827.693; 140.99,...

1 month ago | 0

alternative of inline function
If you want a derivative, why are you using a function handle? Using symbolic toolbox would be simpler: syms x f = x^2-2*x g ...

1 month ago | 1

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