In the following case I'm very confused as to why there is a lam in front of the expression in line 3. Could someone please clarify what this lambda does?
lam = 0.5
x = np.arange(0, 15, 0.1)
y = lam * np.exp(-lam * x)
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2Isn't `lam` just `0.5`? – Yu Hao Aug 13 '15 at 02:12
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It's the coefficient of the probability density function of the exponential distribution.
Ignacio Vazquez-Abrams
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It's lam, not lambda. Since the first line is lam = 0.5, lam * np.exp(-lam * x) is multiplying the result of np.exp(-lam * x) by 0.5.
user2357112
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