Graph bar chart with string variables

[Tony Sung]

There are basically 4 groups of variables. I want to graph a bar chart that has 3 slices, nation-wide, partial/gradual, and phasing students with all the data. What codes should I use?

[David Radwin]

You need to start by using encode to change your string variables to numeric variables. Another option is installing and using Roger Newson's sencode ("sequential encode"), available from SSC.

Then follow the help file for graph pie.

. ssc describe sencode

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package sencode from http://fmwww.bc.edu/repec/bocode/s
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TITLE
      'SENCODE': module to encode a string variable non-alphanumerically into a
        numeric variable

DESCRIPTION/AUTHOR(S)
      
       sencode is a sequential version of encode. It takes, as input, a
      string      variable, and generates, as output, a numeric
      variable, with value labels    corresponding to values of the
      string variable. Unlike encode, sencode      orders the numeric
      values corresponding to string values in the sequential
      order of appearance in the input string variable in the data set,
      or in      another order specified by the user, instead of
      ordering them in alphanumeric      order of the string value, as
      encode does. The mapping from numeric code   values to string
      labels may be one-to-one (coded in order of first  appearance
      of the string value) or many-to-one (coded in each observation
        by the position of that observation in the data set, or in the
      user-specified      ordering).
      
      KW: data manipulation
      
      Requires: Stata version 10.0
      
      
      Author: Roger Newson, National Heart and Lung Institute, Imperial College London
      Support: email [email protected]
      
      Distribution-Date: 20130930
      

INSTALLATION FILES                              (type net install sencode)
      sencode.ado
      sencode.sthlp
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(type ssc install sencode to install)