.append() equivalent in MATLAB

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Swati Sarangi
Swati Sarangi 2020-11-9
回答： Amir Azadeh Ranjbar 2023-10-6
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!

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采纳的回答

Stephan
Stephan 2020-11-9
>> 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
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Saunok Chakrabarty
Saunok Chakrabarty 2021-4-22
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 2021-10-19
Ran in:
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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更多回答（1 个）

Amir Azadeh Ranjbar
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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