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From |
"Hans J. Baumgartner" <hbaumgartner@diw.de> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: translation between binary system and the decimal system. |

Date |
Tue, 12 Oct 2004 16:10:06 +0200 |

Dear statalist,

I’ve got data that is binary coded. That is, an observation may belong to category 1, 2, 3 , 4 or a combination amongst these categories. My variable cat_id has the value of 1 1f it is in category 1; 2 if it is in category 2; 4 if it is in category 3; and 8 if it is in category 4. My variable has the sum of these values, i.e. cat_id=9 means that my observation is in category 1 and 4.

I would like to generate 4 dummies for a new category identification.

Cat_id Cat4 Cat3 Cat2 Cat1

1 0 0 0 1

2 0 0 1 0

3 0 0 1 1

4 0 1 0 0 ... 10 1 0 1 0

11 0 0 1 1

...

i.e. it is a simple translation between binary system and the decimal system.

Is there a command for this?

Thanks

Hans

--

Hans J. Baumgartner DIW Berlin

German Institute for Economic Research

Dept. Public Economics

Königin-Luise-Str. 5; 14195 Berlin; Germany Tel.: +49/30/89789-307 Fax.: +49/30/89789-114

http://www.diw.de

http://www.hansbaumgartner.de

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