.append() equivalent in MATLAB

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Swati Sarangi
Swati Sarangi il 9 Nov 2020
Hi all,
I have a doubt regarding the function in MATLAB which will perform same function as performed by .append() in PYTHON. Do you have any function in mind which will use same activity of extending a list in MATLAB.
Thanks in advance!

Risposta accettata

Stephan
Stephan il 9 Nov 2020
>> List = [1 2 3; 4 5 6]
List =
1 2 3
4 5 6
>> List = [List; 7 8 9]
List =
1 2 3
4 5 6
7 8 9
  3 Commenti
Saunok Chakrabarty
Saunok Chakrabarty il 22 Apr 2021
Hi Stephan,
Is there a function that expands an array dynamically inside a loop, like append() in Python? Like it will keep adding elements based on a specified condition within the loop.
Regards,
Saunok
Cem Keske
Cem Keske il 19 Ott 2021
Hello,
You can use this directly to expand the array dynamically:
array = [array, other_array];
For example:
array = [];
for i = 1:10
if mod(i,2) == 0
array = [array, i]
end
end
array = 2
array = 1×2
2 4
array = 1×3
2 4 6
array = 1×4
2 4 6 8
array = 1×5
2 4 6 8 10
I hope this helps,
Regards,
Cem

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Amir Azadeh Ranjbar
Amir Azadeh Ranjbar il 6 Ott 2023
yes...
you can use end :
there are many way to do this :
examples :
ThemeCopy
x = [1,2,3,4,5] ;
y = [6,7,8] ;
Num_Add = size(y,2) ;
counter = 1 ;
while counter <= Num_Add
Last = size(x,2)+1 ;
x(1,Last) = y(1,counter) ;
counter = counter + 1;
end
disp(x)
1 2 3 4 5 6 7 8
also you can python in matlab very easy :
ThemeCopy
data = py.list([1,2,3,4]) ;
data.append(9)
double(data)
ans = 1×5
1 2 3 4 9
Another example that can be used to add rows to the table
ThemeCopy
data_mat = [1;2;3;4] ;
data = table(data_mat) ;
new_data = {5} ;
data = [data;new_data]

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