convert a 10x2 matrix into x,y coordinates
13 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Supriya Gain
am 7 Aug. 2019
Kommentiert: Stephen23
am 14 Dez. 2022
I have a 10X2 matrix. Now i want to convert this into x,y co-ordinate. like (x,y)=[(1,1), (1,2)]. How to do that?
3 Kommentare
KALYAN ACHARJYA
am 7 Aug. 2019
@Madhan as per my undestanding, may be this one
mat_cor{i,j}=[i,j]; % The loop creates it
A structure with [1,1], [1,2]..... same size as matrix size. I have no clue, WHY?
Akzeptierte Antwort
Weitere Antworten (1)
Steven Lord
am 7 Aug. 2019
If you are trying to create twenty individual variables, one for each element of your 10-by-2 matrix, DON'T DO THAT. See this Answers post for a lengthy discussion of why this is strongly discouraged.
In my opinion, turning that one variable into two (to make it easier to refer to the X and Y coordinates separately) seems reasonable.
A = [1 2;3 4;5 6];
x = A(:, 1);
y = A(:, 2);
With this approach, what you called x2 would instead be x(2). Or you could use the whole vector at once.
plot(x, y) % Shorter than but equivalent to
plot(A(:, 1), A(:, 2))
But the proliferation of variables from one to twenty-one (the twenty new ones plus the original one) is just going to clutter your workspace. Consider: if you had a 10000-by-2 matrix instead of a 10-by-2, do you want to search through twenty thousand variables in your workspace to access the piece of data you need?
0 Kommentare
Siehe auch
Kategorien
Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!