Answered
modify anonymous function using eval
I assume that you want to select from a larger set of different parameters. In that case, put them all into one cell array and t...

3 years ago | 0

Answered
Sorting cell arrays with characters and numbers
"What method can be used to get the right order?" You could download my FEX submission NATSORT: https://www.mathworks.com/matl...

3 years ago | 1

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Answered
How to get the max value between two elements of two separate arrays?
The efficient MATLAB approach: a = [1,3,4,6]; b = [2,2,5,4]; c = max(a,b)

3 years ago | 1

Answered
Display double number with 6 digits exactly
sprintf('The number is %#.6g', 12.45) sprintf('The number is %#.6g', 2)

3 years ago | 1

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Answered
readtable to specify date format to avoid ambiguity on a single variable in file.
As the warning (it is not an error) message shows, set "inputFormat" (not "datetimeFormat"): FILENAME = 'testData.csv'; opts =...

3 years ago | 0

Answered
convert exp number to datetime
N = 2.022051711034598e+16; S = string(uint64(N)) D = datetime(S, 'inputFormat','uuuuMMddHHmmssSSS', 'Format','yyyy-MM-dd HH:mm...

3 years ago | 1

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Answered
conver catagorical to juliandate
C = categorical({'2021-08-22','2021-08-21','2021-08-23','2021-08-22'}) double(C) % get the category indices S = string(C) % ge...

3 years ago | 1

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Answered
Changing file path in a loop
As I wrote earlier, you need to get DIR to more of the work for you. It is simpler and much more efficient when you let DIR do a...

3 years ago | 0

Answered
Keep a tally of the number of occurences of a value in an array
A = [2,3,1,2,1,4,3,2,4]; % method 1 F = @(n)nnz(A(1:n)==A(n)); B = arrayfun(F,1:numel(A)) % method 2 B = sum(triu(A==A.'),1...

3 years ago | 0

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Answered
Add value in vector and use it as input for the next row
S = [1,1,1,0,1,0]; E = [4,2,5,10,2,3]; k = 10; X = S==1; Z = S; Z(X) = k+cumsum(E(X))

3 years ago | 0

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Answered
Get all files under a folder
Just filter out the folders afterwards: P = uigetdir(pwd,'Select a folder'); S = dir(fullfile(P,'*')); S([S.isdir]) = [] % re...

3 years ago | 0

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Answered
how to split a string (char value) with zero in front of it but showing the value in the matrix?
S = '0100'; V = sscanf(S,'%1u')

3 years ago | 1

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Answered
Add indicative labels to vector values
A1 = [1;2;3]; A2 = [4;5;6]; A1(:,2) = 0; A2(:,2) = 1; A = [A1;A2]

3 years ago | 0

Answered
multiplication of a 3-D matrix by a 1-D array
You don't need a special kind of multiplication, you just need to match the vector orientation to the array: C = A .* reshape(B...

3 years ago | 0

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Answered
Find index of a structure with multiple conditions of multiple fields
S.liste.a = linspace(1,30,5); S.liste.b = linspace(1,60,5); S.liste.c = linspace(1,80,5); X = S.liste.a<10 & S.liste.b<50 & S...

3 years ago | 0

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Answered
Retrieve multiple fields with similar names from a struct
Instead of forcing meta-data (i.e. pseudo-indices) into the fieldnames, why are you not simply using a non-scalar structure? The...

3 years ago | 1

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Answered
Making Matrix dimensions agree
x=-2:0.04:2; y=-4:0.04:4; [X,Y] = meshgrid(x,y); fXY = X.*exp((-X.^2)-(Y./2).^2); % use X and Y here, not x and y. surf(X,Y,...

3 years ago | 2

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Answered
Merge rows of cell array with strings per column?
C = {'A','C'; 'B','D'} D = cellfun(@(c)join(c,''),num2cell(C,1)) D = cellfun(@(c)[c{:}],num2cell(C,1),'uni',0)

3 years ago | 0

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Answered
How do I split a vector into parts using indexes?
x = 1:100; y = [10,40,60]; C = mat2cell(x(1:y(end)),1,diff([0,y]))

3 years ago | 0

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Answered
Could not recognize the format of the date/time text
C = ["07/04/2021 07:55:27.502.118" "07/04/2021 07:55:27.502.196" "07/04/2021 07:55:27.502.274" "07/04/2021 07:55:...

3 years ago | 0

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Answered
extract number of columns in each row
Where C is your cell array: V = cellfun(@numel,C) V = cellfun('size',C,2)

3 years ago | 1

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Answered
Function that outputs a varying number of variables depending on input --> N inputs = N output variables
"To my understanding I would be unable to use alternate methods given that the data I am loading are mutlidimensional arrays of ...

3 years ago | 0

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Answered
To write a For loop in which a variable is updated with each run.
"I want to make this more efficient by using a for loop (if it can be done)." Of course it can be done, you just need to avoid ...

3 years ago | 0

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Answered
Using an array as an element in a function.
Use element-wise division ./ not matrix division / You will probably also need to use element-wise power .^, not matrix power ^...

3 years ago | 0

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create cell array by extracting all the same row from multiple matrix
"Is this achievable through cellfun?" Yes: A = rand(105,3); B = rand(105,3); C = rand(105,3); D = cellfun(@vertcat,num2cell...

3 years ago | 0

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Answered
I want to enter a mathematical function as an argument to a function
The simple approach using a function handle: plot_compare(@sin , 5 ,20); plot_compare(@(t) 4*t+9 , 5 ,20); function plot_co...

3 years ago | 0

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Answered
How to create a table from strings and numerical data?
" I don't want to preallocate anything as the sizes are unknown. I wanna start with an empty table and then after first iteratio...

3 years ago | 0

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Plot the last value from each cell from excel file
"Could you please provide me the best way to extract the last values in each cell and plot it?" Sure, I already did that sixtee...

3 years ago | 0

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Answered
Alternative to Eval for small number of variables
Approaches like EVAL and structure fields for this task are far too complex. You need to learn how to use arrays to write simpl...

3 years ago | 0

Answered
Convert input item into string
https://www.mathworks.com/help/matlab/ref/inputname.html

3 years ago | 1

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