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fixed normalDistrib, added randFloat(x) syntax
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@ -861,8 +861,10 @@ def weightedChoice(choiceList, rng=random.random, sum=None):
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# Return the last item.
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return item
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def randFloat(a, b, rng=random.random):
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"""returns a random float in [a,b]"""
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def randFloat(a, b=0., rng=random.random):
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"""returns a random float in [a,b]
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call with single argument to generate random float between arg and zero
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"""
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return lerp(a,b,rng())
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def normalDistrib(a, b, gauss=random.gauss):
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@ -891,7 +893,7 @@ def normalDistrib(a, b, gauss=random.gauss):
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In calculating our standard deviation, we divide (b-a) by 6, since the
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99.7% figure includes 3 standard deviations _on_either_side_ of the mean.
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"""
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return min(a, max(b, gauss((a+b)*.5, (b-a)/6.)))
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return max(a, min(b, gauss((a+b)*.5, (b-a)/6.)))
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def randUint31(rng=random.random):
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"""returns a random integer in [0..2^31).
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