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MathGroup Archive 1992

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Plotting probability distributions

  • To: mathgroup at yoda.physics.unc.edu
  • Subject: Plotting probability distributions
  • From: Colin Rose <colinr at extro.ucc.su.oz.au>
  • Date: Mon, 26 Oct 92 17:44:45 EST

Sven Bohm asks:
    "How can I plot a propability distribution in mathematica? For example  
    if I have LogNormalDistribution[1.16329, 0.649846] how do I get a     
    plot with the frequency on the y axis?"                           

The following should do it....


In[1]:
    <<Statistics`ContinuousDistributions`

In[2]:
    f[y_] := PDF[LogNormalDistribution[mu, sig], y]
    F[y_] := CDF[LogNormalDistribution[mu, sig], y]

In[3]:
    mu = 1.16329;  sig = 0.649846;

    Plot[f[y], {y, 0.01, 10}, PlotLabel -> "Probability Density Function"]
    Plot[F[y], {y, 0.01, 10}, PlotLabel -> "Distribution Function"]        


Regards

Colin

Colin Rose
Dept. of Economics
University of Sydney
colinr at extro.ucc.su.oz.au
*************************






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