st: labeling question

[David Airey <david.airey@vanderbilt.edu>]

I have a variable that is numeric, like:

1.1
2.3
4.6

but about 20 levels to the variable. I want a to use graph_by where  
the by variable is the above, but I don't want the labels to show the  
float values. I could _string_ the numeric variable and graph_by that,  
but then the order is not numeric on the graph.

How do I rapidly change a float numeric variable to a labeled numeric  
variable such that my graph_by is labeled more neatly, and in numeric  
order?

-Dave
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