2D Random path within a unit square
6 views (last 30 days)
Show older comments
Hi all, I want to generate a random path within a unit square and get the x,y coordinates of n=1000 points on it. start point and the end point can be picked up from the vertices of the unit square, i.e, (0,0), (0,1),(1,0),(1,1).
The code I have up to now is given as follows. But it does not restrict the path to lie inside the unit square. How can I solve this?
n=1000;
mypath = rand(n,2);
xp=mypath(:,1);
xp_s=cumsum(xp);
yp=mypath(:,2);
yp_s=cumsum(yp);
plot(xp_s,yp_s)
0 Comments
Answers (2)
Andrei Bobrov
on 21 May 2017
Edited: Andrei Bobrov
on 21 May 2017
n=1000;
mypath = rand(n,2);
m = cumsum(mypath);
mout = m./m(end,:); % MATLAB >= R2016b
mout = bsxfun(@rdivide,m,m(end,:)); % MATLAB < R2016b
0 Comments
Image Analyst
on 21 May 2017
I have a number of random walk demos and I've attached them. Feel free to use them however you wish.
2 Comments
Image Analyst
on 22 May 2017
In your loop, simply don't add the next random step if it would take you outside the unit box. Just get another step instead.
See Also
Categories
Find more on Random Number Generation in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!