Windows 2000
Does anybody know of a sound, tried and tested method in Stata of
converting (net) variables which take a value-range of -1 (thru 0) to +1
into (gross) variables that take a value-range of 0 to 1 only, such that
. l
+--------------+
| net gross |
|--------------|
1. | -1 0 |
2. | -.75 .125 |
3. | -.5 .25 |
4. | -.25 .375 |
5. | 0 .5 |
|--------------|
6. | .25 .625 |
7. | .5 .75 |
8. | .75 .875 |
9. | 1 1 |
+--------------+
and so on.
Clearly, the solution is not some sort of simple scale ratio (if only).
Indeed, it may not be a Stata solution and more of a mathematical one. I
have fired up
. twoway line gross net, xlabel(-1(.1)1) ylabel(0(.1)1)
to make a crude inspection of which net values equates which gross values
(so I know that -.4 = 3, for example), but I need greater precision than
this. Given that many of my values take five or six decimal places (e.g.,
-0.486854), it's impossible to work out all the equivalents!
Any thoughts, Statalisters?
CLIVE NICHOLAS |t: 0(044)7903 397793
Politics |e: [email protected]
Newcastle University |http://www.ncl.ac.uk/geps
Whereever you go and whatever you do, just remember this. No matter how
many like you, admire you, love you or adore you, the number of people
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