rake and weighting

[Sebastián Daza-3]

Thank you for your answer. When I first weight by the gross weights,
rake procedure doesn't consider weight by gross weight (the results
with and without gross weight are the same). Gross weight, moreover,
expands database. I don't get good results with the procedure that you
indicate me.

Regards.

First weight by the gross weights then apply the Python Rake procedure, or,
run the Python to get those weights then multiple them by the gross weight

WMB
Statistical Services


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Sebastián Daza Aranzaes
Sociólogo UC
[hidden email]

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[vlad simion]

Hi Sebastian,

You should include your criteria for gross weighting in the final rim weighting scheme.
By first, weighting with the gross weights and after do the raking, you will actually double weight your data.

Hth,
Vlad

On Mon, Feb 2, 2009 at 3:03 PM, Sebastián Daza <[hidden email]> wrote:

Thank you for your answer. When I first weight by the gross weights,
rake procedure doesn't consider weight by gross weight (the results
with and without gross weight are the same). Gross weight, moreover,
expands database. I don't get good results with the procedure that you
indicate me.

Regards.

First weight by the gross weights then apply the Python Rake procedure, or,
run the Python to get those weights then multiple them by the gross weight

WMB
Statistical Services


--
Sebastián Daza Aranzaes
Sociólogo UC
[hidden email]

=====================
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[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
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[Peck, Jon]

If there is an existing SPSS weight on, rake will automatically use it and produce a new weight incorporating the existing one and the raking adjustments.  You can also specify the total population size as the totalweight parameter, and the weights will be scaled so that the population total matches that value.  You need to use the WEIGHT command after running rake to specify the new weight variable.  Rake does not automatically switch the weight to the new variable.

 

If you have Version 17, you can use the SPSSINC RAKE extension command, which also has a dialog box interface, Data>Rake Weights.  It's not the world's greatest dialog, but it should get the job done.

 

If you have an older version, you will need to use the Python rake module directly.

 

HTH,

Jon Peck

 

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From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of vlad simion
Sent: Monday, February 02, 2009 6:41 AM
To: [hidden email]
Subject: Re: [SPSSX-L] rake and weighting

 

Hi Sebastian,

You should include your criteria for gross weighting in the final rim weighting scheme.
By first, weighting with the gross weights and after do the raking, you will actually double weight your data.

Hth,
Vlad

On Mon, Feb 2, 2009 at 3:03 PM, Sebastián Daza <[hidden email]> wrote:

Thank you for your answer. When I first weight by the gross weights,
rake procedure doesn't consider weight by gross weight (the results
with and without gross weight are the same). Gross weight, moreover,
expands database. I don't get good results with the procedure that you
indicate me.

Regards.

First weight by the gross weights then apply the Python Rake procedure, or,
run the Python to get those weights then multiple them by the gross weight

WMB
Statistical Services


--
Sebastián Daza Aranzaes
Sociólogo UC
[hidden email]

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD