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st: RE: RE: RE: tabodds command with 'if' option

From   "Visintainer, Paul" <PAUL_VISINTAINER@NYMC.EDU>
To   <>
Subject   st: RE: RE: RE: tabodds command with 'if' option
Date   Tue, 7 Mar 2006 09:27:17 -0500

Appologies for the typo of the -for- command.  (The capitalization results from an "auto-correct" function in my word editor.  I catch most, but not all.)  More importantly, though, why is the -for- command being dropped?  Obviously -forval- and -foreach- are far more flexible, but the -for- command is quite convenient in routine data manipulation and analysis.  Its a great way to introduce new students to looping over numbers or variables.  I would vote for retaining it.


-----Original Message-----
From: on behalf of Nick Cox
Sent: Fri 3/3/2006 11:04 AM
Subject: st: RE: RE: tabodds command with 'if' option
Note that -For- is not a Stata command. The command is -for-. Also, 
unless the user has an old version of Stata, no
on-line help is now available for -for-. 

For reasons documented elsewhere, -for- is in 
essence deprecated. -forval- and -foreach- 
should be considered preferable. 


Visintainer, Paul
> Assuming your data are set up appropriately, try:
> For num 1/5: tabodds case year [fweight=freq] if cat == X

Sean Shu
> I have a cross-sectional time series dataset. I want to find 
> whether any
> trend is presented over the years for different categories. So I used 
> tabodds command. But I want to apply the command for 
> different category 
> seperately. so I write the command syntax over the dataset attached:
>  > tabodds case year [fweight=freq][if cat = 1]
>  > tabodds case year [fweight=freq][if cat = 2]
> ...
>  > tabodds case year [fweight=freq][if cat = 5]
> Can you tell what's wrong with it? and Do I need write syntax to loop 
> the tabodds five time?

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