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Re: st: Identify observations by occupation


From   Oliver Jones <ojones@wiwi.uni-bielefeld.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Identify observations by occupation
Date   Tue, 17 Apr 2012 11:24:05 +0200

Hi Nick,

thanks for your help.

-total_je_beruf- should have been --total_occupation-
(I forgot to translate the variable name from German to English.)

Best
Oliver

Am 17.04.2012 11:05, schrieb Nick Cox:
You want largest to have rank 1, but need to take account of ties.
This is a bit shorter. I don't know what -total_je_beruf- is in your
code.

bysort occupation: egen total_occupation = total(n)
bysort total_occupation occupation : gen rank = _n == 1
replace rank = sum(rank)
replace rank = rank[_N] - rank + 1

bysort total_occupation occupation : gen rank = _n == 1

is also

egen rank = tag(total_occupation occupation)

Nick

On Tue, Apr 17, 2012 at 9:45 AM, Oliver Jones
<ojones@wiwi.uni-bielefeld.de>  wrote:

I have a dataset containing the number of employed people
for 180 cities and 300 occupations.

Now I want to generate a variable that shows the ranking
of the occupations by the total number of people working
in that occupation.

I have managed to create this variable. But I bet there is
a more elegant and easier way to do it and I hope some one
here can show me how or tell me the appropriate command(s).

Here is what I have done ...

The data looks like this:

city  |  occupation  |  n
-----------------------------
001   |  nurse       |  1222
002   |  nurse       |   345
.     |   .          |     .
.     |   .          |     .
.     |   .          |     .
180   |  nurse       |    94
.............................
001   |  lawyer      |   308
002   |  lawyer      |    55
.     |   .          |     .
.     |   .          |     .
.     |   .          |     .
180   |  lawyer      |    15
.............................
001   |  teacher     |   930
.     |   .          |     .
.     |   .          |     .
.     |   .          |     .


bysort occupation: egen total_occupation = total(n)
bysort total_occupation: gen index = (_n == 1)
sort index total_je_beruf
bysort index: gen top_occupation = _N + 1 - _n
replace top_occupation = . if index == 0
sort top_occupation

* List the biggest 10 occupations
list occupation total_occupation top_occupation if top_occupation<= 10

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