How to create multiple matrices using for loop?
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How to take input of coordinates of n number of points and store it in different 2x1 matrices?
The loops I am using are as follows but there is some error.
for i=1:n
x(i)=input('Enter the X-coordinate of node ')
y(i)=input('Enter the Y-coordinate of node ')
end
C=[x;y]
for i=1:n
P(i)= [x(i);y(i)]
end
8 comentarios
Atsushi Ueno
el 17 de Abr. de 2021
You should treat P as a 2D matrix. I am not sure if this comment solve your question.
P(:,i) = [x(i);y(i)];
Rohit Raut
el 17 de Abr. de 2021
Atsushi Ueno
el 17 de Abr. de 2021
If you mean "different 2x1 matrices" as "tuple (cell array)", you should change your code as below.
P{i} = [x(i);y(i)];
Atsushi Ueno
el 17 de Abr. de 2021
How about this one?
eval(['P' num2str(i) ' = [x(' num2str(i) ');y(' num2str(i) ')]']);
Jan
el 17 de Abr. de 2021
@Atsushi Ueno: Stay at the cell array. Creating a bunch of variables dynamically with EVAL is a bad programming style. See TUTORIAL: Why and how to avoid EVAL
Atsushi Ueno
el 18 de Abr. de 2021
Stephen23
el 18 de Abr. de 2021
A cell array already contains those "multiple matrices", which are trivially accessible via indexing.
Jonas
el 18 de Abr. de 2021
i'm a bit confused what you really want. If u are ok with multiple 2x1 matrices in a cell array you can just use num2cell(C,1) in your case, it divides a 2 x n matrix into n cells containing each 2x1 matrices
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