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help for ^grfreq^
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Plots proportion of one variable by categories of another
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    ^grfreq^ outcome strata [if] [, outcom(integer) gropt(...) yaxis01 ]

Description
-----------

^grfreq^ plots proportions of one variable by categories of another.

For a binary variable, this could be the prevalence of a trait.

By default, the proportion of interest is that of the minimal value of
the outcome variable. The outcome of interest can be changed.

Options
-------

^gropt(...)^  specifies a string with options that are passed
along to the graph command.

^outcom(integer)^ specifies that the outcome of interest should be
a given value. The default is the minimal value of the outcome
variable.

^yaxis01^ scales the y-axis from 0 to 1 and gives axis ticks and labels.


Remarks 
-------
This program does not accept weights yet. It should be easily modified 
for this. Just fiddle around with the "table" statement.

Examples
--------

    . ^grfreq^ response age
    . ^grfreq^ response age, gropt("xlab(15(10)70)")
    . ^grfreq^ response age, outcom(1)


Author
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    Jan Brogger, University of Bergen, Norway
    jan.brogger@@med.uib.no

Shameless plug :)
--------------
 I am looking for internship & residency  in internal 
 medicine/pulmonary medicine US/EU. Am doing PhD in respiratory 
 epidemiology now.