# Stephen23

Active since 2014

Followers: 6   Following: 0

Suspensa Vix Via Fit

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Not enough input arguments
"I am a little perplexed by this warning from matlab: "Not enough input arguments" for my following code" Lets take a look at h...

3 days ago | 0

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why does it change the number when using VPA?
"why does it change the number when using VPA?" It doesn't. That "loss of digits" is completely unrelated to VPA. The change o...

3 days ago | 2

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How can I use the data of a set of matrices labelled in order
"Thank you also for pointing about about dynamic variables, but as a beginner I am lacking options." You decided to use LOAD, s...

4 days ago | 0

i have a csv with data separated with commas and columns also are separated with commas
T = fileread('piloto.csv') T = regexprep(T,',(\d+e)','\.\$1') % you could also save this to a proper CSV file C = textscan(T,''...

4 days ago | 0

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extract multiple slices of difference sizes from a vector
The MATLAB approach: A = [1 4 6 5 4 8 7 8 6 4]; N = [2 3 5]; C = mat2cell(A,1,N); Checking: C{:}

4 days ago | 0

How to read lines from cell
S = readlines('T04102.txt'); X = find(startsWith(S,'PID 01')); F = @(x) regexp(S(x:x+3),'[01]{4}\s+[01]{4}','once','match'); ...

6 days ago | 0

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Why is str2num not recommended when it is faster in certain circumstances?
"Why is str2num not recommended when it is faster in certain circumstances?" Because it relies on EVAL. Code called by EVAL is ...

10 days ago | 0

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Function input argument block - defining multiple valid classes for input data.
"I'd like to consolidate these two functions into one function so I do not have the need for multiple files." You do not need m...

12 days ago | 1

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How to read an excel /csv files with columns that have both text and numbers?
fnm = 'sample.csv'; tmp = readcell(fnm, 'Delimiter',','); idx = cellfun(@ischar,tmp(:,1)); assert(all(diff(idx)<1)) nhl = nn...

13 days ago | 0

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Vectorization for Two Nested for-loops
Without creating multiple copies of data in memory: A = [2 3 4; 5 2 1; 1 4 3]; B = [3 4 4; 4 2 1; 4 4 1]; C = sum(permute(A,[...

13 days ago | 0

How can.struct data be made available to non-MATLAB users?
"Can a .struct with nested structs, using a multitude of fieldnames and datalines, be converted to a non-MATLAB format like exce...

13 days ago | 1

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Accessing cell array entries using arrays
B = [1,2,2,1,1; 2,1,2,1,2]; V = 1:size(B,2); A = accumarray(B.',V(:),[],@(m){m.'}) A{1,2}

13 days ago | 0

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Insufficient number of outputs from right hand side of equal sign to satisfy assignment.
Note that the meaning of square brackets is different in the LHS vs on the RHS. C = num2cell(b1); [app.Sis.Slippage]...

15 days ago | 0

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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 ...

20 days 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 ...

21 days 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 ...

21 days 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...

26 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...

26 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...

27 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...

27 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. ...

27 days ago | 2

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

27 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...

1 month ago | 1

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

1 month 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...

1 month 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...

1 month 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...

1 month 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)

1 month ago | 0

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