st: replacement

["Gannaway Jack WWG HWWD" <JACK.GANNAWAY@dwp.gsi.gov.uk>]

Statalisters,

I have a table where each observation has a letter as the value for a
number of the variables, e.g.

Ob v1 v2 v3  
1  a  a  b
2  c	d  a
3  b	c  b


For each variable, there is a unique set of numbers which correspond to
the letters:

Var a b c d
V1  0 3 5 9
V2  0 1 2 5
V3  0 1 5 10

Can anyone explain a neat way of replacing all the letters with their
relevent numeric score?  I know I could just do a messy and long
replace, but the score table is liable to change in the future and I
want a system where I can just point to a different input, rather than
manually re-write the replace command.

Many thanks in advance.

Jack Gannaway

	
------------------------------------------------------------------------
-------------------------------
      Jack Gannaway 
        Economic Adviser | Department for Work & Pensions, Caxton House,
Tothill Street, London, SW1H 9D
        jack.gannaway@dwp.gsi.gov.uk | Tel: 02074 495704 (x 65704) 




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