cannot coerce class "matchit" into a data.frame"

Greetings fellow humans,

I am attempting to export a text file after using the MatchIt package to match control with treatment subjects.  I attempted to write.table and used the following syntax:

"write.table(social,"shaka.txt",sep=" ",quote=FALSE,row.names=FALSE,col.names= FALSE)"

But received the following error message: 
"Error in as.data.frame.default(x[[i]], optional = TRUE) : cannot coerce class "matchit" into a data.frame"

I thought that maybe I had to convert to a data frame, and tinkered with data.frame, as.data.frame, and is.data.frame, but this didn't work (although I could had done it improperly). Please pardon my novice R skills.

Any guidance will be greatly appreciated.  
"MatchIt" is a special package, so you might have to contact the author 
/ maintainer directly.

[You can save() a MatchIt object, of course, and load() it afterwards, 
if this is sufficient.]

Uwe Ligges
Cheers,

Jason E. Piccone, Ph.D.
Research and Evaluation Specialist
Department of Correctional Education

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cannot coerce class "matchit" into a data.frame"

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