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From |
Diogo L Pinheiro <[email protected]> |

To |
[email protected] |

Subject |
st: Creating square matrix with obs counts from 2 non unique id variables |

Date |
Tue, 19 Apr 2011 11:47:34 -0400 |

Hello, everyone,

Observation ID1 ID2 1. 10 12 2. 10 11 3. 11 12 4. 11 10

From that, I want to create a square matrix that would look something like: 10 11 12 10 0 1 1 11 1 0 1 12 0 0 0 So that I could have all the counts of each combination of organizations.

tab ID2, gen(newID) collapse (sum) newID, by(ID1)

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