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help for ^tabhbar^
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Table of frequencies as horizontal bar chart
--------------------------------------------

    ^tabhbar^ rowvar [colvar] [^if^ exp] [^in^ range] [weight]
    [^, fs^ort ^rfs^ort ^w^ide ^z^ero ^rowpc rowpr rowfr colpc colpr colfr^
    hbar_options ]

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

^tabhbar^ is a driver for ^hbar^ that produces a horizontal bar chart of
the frequencies of the distinct values of either one or two categorical
variables.

With one variable, its values define the `rows' of the bar chart.

With two variables, their values define the `rows' and `columns' of the
bar chart, best explained by example.

Given the following frequencies (from ^tab for rep78^)

           |                   Repair Record 1978
  Car type |         1          2          3          4          5 |     Total
-----------+-------------------------------------------------------+----------
  Domestic |         2          8         27          9          2 |        48
   Foreign |         0          0          3          9          9 |        21
-----------+-------------------------------------------------------+----------
     Total |         2          8         30         18         11 |        69

in the default `long' form  given by ^tabhbar for rep78^, bars are in the
following order:

Domestic  1          2
          2          8
          3         27
          4          9
          5          2
Foreign   3          3
          4          9
          5          9

while in the `wide' form given by ^tabhbar for rep78, wide^, bars are stacked:

Domestic       2 + 8 + 27 + 9 + 2
Foreign        3 + 9 + 9


Options
-------

^fsort^ specifies that bars are to be sorted by frequency, the bar with
     the lowest frequency being placed at the top of the chart. This
     applies only with one variable.

^rfsort^ specifies that bars are to be sorted by frequency, the bar with
     the highest frequency being placed at the top of the chart. This
     applies only with one variable.

^zero^ specifies that combinations with frequency zero are wanted.
     However, they will still be represented by invisible bars of zero
     height.

^rowpc^, ^rowpr^, ^rowfr^, ^colpc^, ^colpr^, ^colfr^ scale frequencies
     to be percents, adding to 100, or proportions (fractions), adding to 1,
     of the total of the row or column variable. ^rowpr^ and ^rowfr^
     are equivalent, as are ^colpr^ and ^colfr^. The ^col^*
     options are useful only when two variables are plotted.

^wide^ gives a stacked form of the bar chart. See above.


hbar_options are any options of ^hbar^.

Examples
--------

    . ^tabhbar rep78^
    . ^tabhbar rep78, fsort^
    . ^tabhbar foreign rep78, z gap(5) gapm(2)^
      ^ti(Report record, domestic and foreign cars) xla(0(5)30) xsc(-1,30)^


Author
------

         Nicholas J. Cox, University of Durham, U.K.
         n.j.cox@@durham.ac.uk

Also see
--------

On-line: help for @hbar@