File:Random Walk example.svg
| Uploaded by | Toobaz |
|---|---|
| Upload date | 2010-02-05T07:28:39Z |
| MIME type | image/svg+xml |
| Dimensions | 720 × 540 px |
| File size | 30.2 KB |
Summary
| Description |
English: Eight different random walks. |
| Date | |
| Source | Own work |
| Author | Morn |
| Other versions |
|
| SVG development |  This plot was created with Matplotlib. |
Source code
Made with the following Python script (needs Matplotlib):
from pylab import *
from random import choice
numwalk = 8
length = 100
data = zeros((numwalk, length), int)
for n in range(numwalk):
for x in range(1, length):
step = choice([-1, 1])
data[n,x] = data[n,x-1] + step
plot(range(length), data[n,:])
xlabel('t')
axis ((0,100, -20, 20))
savefig('Random_Walk_example.svg')
show()
|
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2008-10-14 18:20 Morn 720×540 (30897 bytes) {{Information |Description= |Source=I created this work entirely by myself. |Date=2008-10-14 |Author=~~~ |other_versions= }} Made with the following Python script: <code> from pylab import * from random import choice numwalk = 8 length = 100 data = z
The following is the similar code in MATLAB and Octave
function RandomWalk () hold off; x = 1:100; color = ['y' 'g' 'b' 'k' 'r', 'm' 'c']; y(1)= 0; for m = 1:7 for n = 2:100 y(n) = y(n-1) + 2*floor(rand()*2)-1; end plot(x, y, color(m), 'LineWidth',2); hold on axis([0 100, -20 20]) end end