# Re: st: Re: RE: Re: Fill in panel observations

 From John Antonakis To statalist@hsphsun2.harvard.edu Subject Re: st: Re: RE: Re: Fill in panel observations Date Sun, 29 Mar 2009 19:18:03 +0200

In fact, I had no missing data (and am aware that this can create problems).....so the initial solution of Martin was correct and "loyal" to the problem, though Nick's trick is also handy to know.
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Best,
J.

On 29.03.2009 18:29, Martin Weiss wrote:
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That is the thing about posts with example data in them. You can answer the request based on the structure of the data that you observe in the post. That means you assume that the poster knows best and gave an accurate representative sample of his data.
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Or you think ahead and anticipate that there must be some kind of problem in there that the poster does not regard as a problem, e.g. missing values. But you run into a new problem then: We do not know what John wants to happen if there are missing values. Maybe he still wants the -egen, count()- solution even then?
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I chose the former attitude to the problem, but I recommend that John pay close attention to Nick`s recommendation and implement them if he feels they do what he wants...
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HTH
Martin
_______________________
----- Original Message ----- From: "Nick Cox" <n.j.cox@durham.ac.uk>
To: <statalist@hsphsun2.harvard.edu>
Sent: Sunday, March 29, 2009 6:02 PM
Subject: st: RE: Re: Fill in panel observations

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```There will be a difference between the results

bys iis: egen total_rater = count(rater)

and

bys iis : gen total_rater = _N

if -rater- is ever missing; but otherwise the latter is more direct and
more efficient.

Incidentally, once you known that data are sorted on -iis-, the second
command can just start -by iis:-.

Nick
n.j.cox@durham.ac.uk

Martin Weiss

bys iis: g rater=_n
bys iis: egen total_rater=count(rater)

John Antonakis

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```I have multiple observations on leaders (iis) by raters, like this:

iis  sex  age   y  rater   total_rater
1    0    43    5    1        5
1    0    43    9    2        5
1    0    43    3    3        5
1    0    43    6    4        5
1    0    43    6    5        5
2    1    46    9    1        7
2    1    46    7    2        7
2    1    46    9    3        7
2    1    46    6    4        7
2    1    46    7    5        7
2    1    46    2    6        7
2    1    46    8    7        7

At this time, the rater column and total_rater columns are blank. I
would like to fill them in such that:

a. Under "Rater" I number each within the panel, starting with 1 and
going up to k raters (as I have done above).
b. The total number of k raters is included for each leader (as in the
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```total_rater column).

Is there a quick way to do this?
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