Just trying you again…  (Matt & Ariel am trying your emails too)

 

Any idea why I would be getting such a high % of missing. 

 

In my dataset I have 30,473 cases where “cem_matched” ==1 (25,090 control, 5,383 treated).  Of those 14,245 have a “cem_strata” ==. (11,624 control, 2,621 treated). 

 

FYI, here is an output of the weights (cem1w) – treatment is pv, control is non-pv

 

 

 

Thanks for any help you might be able to offer.

 

Ben

 

Ben Hoen

LBNL

Office: 845-758-1896

Cell: 718-812-7589

 

From: Ben Hoen [mailto:bhoen@lbl.gov]
Sent: Tuesday, September 09, 2014 3:43 PM
To: cem@lists.gking.harvard.edu
Subject: cem_matched ==1 and cem_strata==. <missing>

 

Hi all,

 

I had been using a cem matching output to run regressions and have just now found that a large set of the output has the variable “cem_matched” ==1 while the “cem_strata” ==. (a.k.a. missing).  For those cases, there is also a weight stored in “cem_weights”.

 

Is this a common occurance?  If so, would you be able to explain when/why this occurs?

 

Ben

 

Ben Hoen

Staff Research Associate

Lawrence Berkeley National Laboratory

Office: 845-758-1896

Cell: 718-812-7589

bhoen@lbl.gov

http://emp.lbl.gov/staff/ben-hoen

 

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