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RE: st: AW: problem with -contract-


From   "Martin Weiss" <[email protected]>
To   <[email protected]>
Subject   RE: st: AW: problem with -contract-
Date   Wed, 6 Jan 2010 11:51:57 +0100

<>

Forget the -help whatsnew- part of the last message. If you cannot -update-, you cannot look at the whatsnew of the update, either. Still, the code in the last post should run.


HTH
Martin


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Martin Weiss
Sent: Mittwoch, 6. Januar 2010 11:48
To: [email protected]
Subject: RE: st: AW: problem with -contract-


<>

" Currently I cannot update Stata."

We cannot help you there, but you should be able to run the code below even with Stata 10.0, or earlier. I simply swapped -runiform()- and -uniform()-, see -help whatsnew- for "update 11aug2008"...

*******
clear*

vers 9.2

set obs 1000

forv i=1/165{
	gen var`i'=irecode(uniform(), 0, .2, .9, 1)
}

contract var*

su _freq, d
*******


HTH
Martin

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Karen Wright
Sent: Mittwoch, 6. Januar 2010 11:25
To: [email protected]
Subject: Re: st: AW: problem with -contract-

Thank you the help is much appreciated but unfortunately I have to delay
slightly as I am trying to obtain admin rights for my desktop from IT!!!
 Currently I cannot update Stata.
As you point out Stata should be able to handle the amount of variables
I am talking about but I am assuming that -contract- must generate extra
variables in calculating the frequencies?
I shall run the example code you have given me when I am able to update
Stata and email you then if that would be alright?  Apologies, I do not
know how long this may take.

Thank you,
Karen

>>> "Martin Weiss" <[email protected]> 05/01/2010 17:52 >>>

<> 

-h limits- (in Stata 10) does indicate that IC can handle 2,047
variables,
though. What happens when you run this example code?



*************
clear*

vers 10.1

set obs 1000

forv i=1/165{
	gen var`i'=irecode(runiform(), 0, .2, .9, 1)
}

contract var*

su _freq, d
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: [email protected] 
[mailto:[email protected]] Im Auftrag von Karen
Wright
Gesendet: Dienstag, 5. Januar 2010 18:32
An: [email protected] 
Betreff: st: problem with -contract-

I was wondering if anyone could help with a problem i am having using
-contract-.  I wish to use contract on about 165 variables at the same
time,
this would create a dataset containing 166 variables if contract
worked.
however Stata (of which I am using version 10, IC)  cannot do this due
to
too many variables.  Is there another way to create the frequencies I
require or to alter -contract- in some way to allow this many
variables?

Thank you,
Karen 


The Institute of Cancer Research: Royal Cancer Hospital, a charitable
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