Stephen23

Active since 2014

Suspensa Vix Via Fit

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How to create a 3D Matrix?
"While in python this matrix is of 3*2*5," Not really, it is actually just a whole lot of nested 1D lists. In some languages th...

5 hours ago | 0

Answered
This statement is not inside any function. (It follows the END that terminates the definition of the function "mixing_tank".)
The function definition needs to come after all of the other code. See: https://www.mathworks.com/help/matlab/matlab_prog/local...

23 hours ago | 0

Answered
Get special variable out of every struct in workspace
"Is there any way to extract the "values" out of these 2 structs for each variable which is loaded into the workspace?" Yes, bu...

1 day ago | 1

Answered
How to load all .mat file in the current directory and save them as .wav file?
P = 'C:\Users\Desktop\BE'; S = dir(fullfile(P,'*.mat')); for k = 1:numel(S) F = fullfile(S(k).folder,S(k).name); D =...

1 day ago | 0

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How do I add rows to a table in a for loop?
"... it keeps producing the tables I want, but not in the order I want, and I don't know how to fix this." My guess (in lieu of...

2 days ago | 0

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identifying entry elements in rows of logical matrix
A = [1,1,1;0,1,1;0,0,0;0,1,0] B = A .* (cumsum(A,2)==1) % replace .* with & to get a logical output

2 days ago | 3

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Answered
How to perform function whos output is a struct in a loop?
Assuming identical fieldnames, the simplest and most robust solution is to concatenate the structure after the loop: N = numel(...

2 days ago | 0

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Deleting fields of a particular dimension in a structure
As I wrote in several of your earlier questions, this task would be much easier if your data were better designed: https://www....

2 days ago | 0

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How can I change timestamp format?
The best solution is to fix the source. Otherwise: C = {'09.02.2022 14:41:56:999';'09.02.2022 14:41:57:1'} D = regexprep(C,{':...

2 days ago | 0

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Answered
Creating a row vector of combinations?
One simple aprpoach is to download this FEX submission: https://www.mathworks.com/matlabcentral/fileexchange/24325-combinator-c...

2 days ago | 3

Answered
Extracting names from first row of index and seeing if they are equal to indexed variable?
You can simplify this by using one loop. Lets first create some fake data: mkdir ./scan1 mkdir ./scan2 mkdir ./scan3 writema...

3 days ago | 0

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Answered
How to eliminate values after comma, in double value?
A wild guess: V = [0.2,0.2862] W = fix(V*10)/10

3 days ago | 1

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Answered
How i creat Costomer fscanf?
format long M = readmatrix('sol2.txt', 'Delimiter',{' ','∠'}, 'MultipleDelimsAsOne',true, 'TrimNonNumeric',true)

3 days ago | 1

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Answered
How to save the Data in different array using Value in 2nd column
Clearly creating lots of separate variables in the workspace would be a very bad approach: https://www.mathworks.com/matlabcent...

3 days ago | 0

Answered
Not enough input arguments (line 2)
You need to learn about function handles: https://www.mathworks.com/help/matlab/function-handles.html I also had to fix your c...

3 days ago | 1

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Answered
Return variable from nested function
Callback functions do not return output arguments**, so your approach will not work. The MATLAB documentation explains approache...

5 days ago | 0

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Answered
How to convert fields in a struct into an int?
This would be much easier if your data were better designed, exactly as I recommended in your last question (which you have so f...

6 days ago | 0

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How do you iterate over multiple fields in a structure?
One approach is to use FIELDNAMES() and dynamic fieldnames: https://www.mathworks.com/help/matlab/matlab_prog/generate-field-na...

6 days ago | 0

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Answered
Plotting data from struct array
"I am really not sure how to call plot with the plot vectors being contained in fields/subfields of a struct array." The answer...

7 days ago | 1

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Answered
Create folders and organize data based on file name.
movefile('*CP-A-01*.*', 'newdir01') movefile('*CP-B-01*.*', 'newdir02')

7 days ago | 0

Answered
Is it possible to create a nested structure with dynamic field names?
"However, this version of dot indexing (right side dynamic naming) is not supported." Lets try it right now: S.A.B.C = pi; S....

7 days ago | 1

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Answered
How do I print a legend using a character array and integer array?
COMPOSE() is perfect for this, but was first introduced in R2016b. You could use ARRAYFUN() or CELLFUN(): C = {'Current','Curre...

8 days ago | 0

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Answered
Removing neighbours that are too close from eachother in a vector
x = [1,8,9,10,15,20,22,25,34] [~,~,y] = uniquetol(x, 5, 'DataScale',1); z = accumarray(y(:),x(:),[],@(v) v(ceil(end/2)))

8 days ago | 1

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Answered
Create a row vector comparing strings in a for loop
The simple MATLAB approach: s1 = { 'FMO1','FMO2','FMO3','FMO4', 'BAO1', 'BAO2', 'BAO3', 'BAO4'}; s2 = {'mean','FMO1','BAO4','F...

9 days ago | 1

Answered
Convert string array to numetric.
data = ["01";"01";"10";"10";"01"] M = char(data)-'0'

9 days ago | 1

Answered
How can i change struct size
S = load('sample_data.mat') E = S.ECOG E.locations E.locations(49:end) = [] % remove those structure elements E.locations

10 days ago | 0

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Answered
Importing data from csv file and my time data is being ruined changes from 24 hour time to 59 hour. How do I fix?
"I tried to export with format 'mm/dd/yyyy HH:mm:ss.SSS a', " Months are MM, minutes are mm: https://www.mathworks.com/help/ma...

10 days ago | 0

Answered
Not able to store an Array field from a Structure to another variable
M = vertcat(F1.Position) or C = {F1.Position} https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html h...

10 days ago | 0

Answered
How to combine elements from cell?
a = {10,11;12,13} b = {20,21;22,23} c = cellfun(@horzcat,a,b, 'uni',0)

12 days ago | 0

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Answered
How do I assign a value to a field in a multi-level struct when the field name is contained in a variable?
You do not need any obfuscated fiddling around with SUBSASGN(). The standard MATLAB approach is to use SETFIELD() / GETFIELD():...

14 days ago | 0

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