I'm sorry for sending another e-mail -- one correction to my previous
post is that the hometown01 variable is categorical -- and the
categories are in Chinese characters -- perhaps this is a reason why
imb is having difficulty.
thank you again,
Prashant
On Tue, Feb 14, 2012 at 10:29 PM, Prashant <presearchwork(a)gmail.com> wrote:
Hi Matt,
Thank you kindly for the quick reply -- I later tried with different
combinations of variables and found that the imb command works after
taking out the binary variable "hometown01". The cem command works
even when it (or any combination of variables) is included. Does it
have to do with the ~15% missing values in hometown01 perhaps?
Thank you for all of your help!
Prashant
On Tue, Feb 14, 2012 at 10:18 PM, Matt Blackwell
<blackwel(a)fas.harvard.edu> wrote:
> Hi Prashant,
>
> Have you tried running the imb function on a smaller set of the variables?
> The `cem` command calls imbalance at some point, so this should work.
> Another quick potential solution is to reinstall the CEM package and see if
> that fixes the issue.
>
> Hope that helps!
>
> Cheers,
> matt.
>
> ~~~~~~~~~~~
> Matthew Blackwell
> PhD Candidate
> Institute for Quantitative Social Science
> Department of Government
> Harvard University
> url:
http://www.mattblackwell.org
>
> On Tuesday, February 14, 2012 at 5:59 AM, Prashant wrote:
>
> Hi,
>
> I'm get an error message when I run imb in Stata (cem runs fine):
>
> L1meas(): 3301 subscript invalid
> imbalance(): - function returned error
> <istmt>: - function returned error
> r(3301);
>
> My code is something like:
> imb new_age borninbeijing female hometown01 BJ_hukou Rural_hukoutype
> fatheredu motheredu ifpreschooling schoolingathome,
> treatment(public_yn)
>
> Any help would be most appreciated!
> Thanks,
> Prashant
> -
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