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| Deletions are marked like this. | Additions are marked like this. |
| Line 13: | Line 13: |
| vv = []; nn = 0 | vv = [] nn = 0 |
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| def foo(pts = checkbox(True, "Show points"), refresh = checkbox(False, "New random walk every time"), steps = (50,(10..500))): |
def foo(pts=checkbox(True, "Show points"), refresh=checkbox(False, "New random walk every time"), steps=slider([10..500],default=50)): |
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| # checking or unchecking the points checkbox doesn't change # the random walk. |
# checking or unchecking the points checkbox does not change # the random walk. |
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| if refresh or len(vv) == 0: s = 0; v = [(0,0)] |
if refresh or not vv: s = 0 v = [(0, 0)] |
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| s = vv[-1][1]; j = len(vv) | s = vv[-1][1] j = len(vv) |
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| vv.append((i+j,s)) | vv.append((i + j, s)) |
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| if pts: L += points(v, pointsize=10, rgbcolor='red') show(L, xmin=0, figsize=[8,3]) |
if pts: L += points(v, pointsize=10, rgbcolor='red') show(L, xmin=0, figsize=[8, 3]) |
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| To get the dice picture you need to download this [[http://wiki.sagemath.org/interact/stats?action=AttachFile&do=get&target=dishonest_casino.sws|dishonest_casino.sws]] |
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| a = os.system('cp '+DATA+'dice_sm.png ./dice.png') | |
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| html('<img src="'+DATA+'dice_sm.png">') | |
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| html('Actual: '+ actual_str) }}} |
html('Actual: '+ actual_str)}}} |
Sage Interactions - Statistics and Probability
goto interact main page
Contents
A Random Walk
by William Stein
3D Random Walk
Hidden Markov Model: The Occasionally Dishonest Casino
by Marshall Hampton
Based on the classic example in "Biological Sequence Analysis" by Durbin et al.
