I don't think this got through to the list since I didn't receive it after I sent it. Anyway, here it goes again:
I have a data set that looks like this:
--------------------------------------------------------------------------------------------
week price quantity Manufacturer
1 3.5 40 A
1 9.1 50 B
1 10.5 70 B
1 20 80 B
2 45 70 A
2 3.1 100 A
2 15 10 A
2 28 15 B
--------------------------------------------------------------------------------------------
I ultimately want to end up with this:
--------------------------------------------------------------------------------------------
week weigthedprice_A weightedprice_B
1 3.5 13.95
2 20.05556 28
-------------------------------------------------------------------------------------------
In other words, I want to sum the quantity-weighted price for each week by Manufacturer.
I used the following but can't quite get the weights option right:
-collapse (mean) price [*? some weights option here,I can't quite get it*], by(week Manufacturer)-
-reshape wide price, i(week) j(Manufacturer) string-
I'd appreciate any help.
Thanks!
Rodrigo
Rodrigo Martell
<http://www.frontier-economics.com>
Frontier Economics Pty. Ltd.
395 Collins Street
Melbourne VIC 3000
Australia
www.frontier-economics.com
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