Freq Command on %gra Tier

[Brian MacWhinney]

Dear Kimberly,
This seems right the right list.  I guess we would need to test this out on a trial corpus or two to find out the exact precision and accuracy of this type of filter.  If you have a corpus or set of transcripts that you think would be a good target for this type of checking we could focus on that.

-- Brian

From: ChiBolts <chibolts at googlegroups.com> on behalf of Kimberly Mueller <digglekim at gmail.com>
Reply-To: ChiBolts <chibolts at googlegroups.com>
Date: Friday, September 16, 2016 at 10:16 AM
To: ChiBolts <chibolts at googlegroups.com>
Subject: Re: Freq Command on %gra Tier

Dear Brian,

Thank you for this, it is working nicely.  I went through the manual, and decided to add a few other grammatical relations in order to capture syntactic complexity. I am hoping that you (or others) might look it over and let me know if this list appears sound?  The entire list includes the following:

CSUBJ:  the finite clausal subject of another clause
COMP: the finite clausal complement of a verb
XCOMP: the non-finite clausal complement of a verb
CPRED: a full clause that serves as the predicate nominal of verbs
CPOBJ: a full clause that serves as the object of a preposition
COBJ: a full clause that serves as object
XJCT: a non-finite clause that attaches to a verb, adjective, or adverb
NJCT: the head of a complex Noun Phrase with a prepositional phrase attached as an adjunct of a noun.
CMOD: a finite clause that is a nominal modifier or complement
XMOD: a non-finite clause that is a nominal modifier or complement.

Taking the sum of these captured and then dividing by the total number of GRs for that sample, yielding a syntactic complexity ratio.

Thank you again for all of your help,
Kimberly








On Wednesday, August 31, 2016 at 1:50:10 PM UTC-5, Brian MacWhinney wrote:
Dear Kimberley,
To count, for example, all the cases of XCOMP in the productions by the child in the Eve corpus in Eng-NA-MOR/Brown.zip on CHILDES, I used this command:

freq +t%gra +s"%|XCOMP" *.cha +u +t*CHI

You could add more +s switches for CMOD, CPRED, and XPRED.  Go through the documentation of the GRs in the manual to see if you consider any others to involve embedding.  Then, I suppose you want to take account of the overall size of your corpus by running

freq +t%gra *.cha +u +t*CHI

Then you can divide by the total number of tokens you get there.

--Brian MacWhinney

From: ChiBolts <chib... at googlegroups.com<javascript:>> on behalf of Kimberly Mueller <digg... at gmail.com<javascript:>>
Reply-To: ChiBolts <chib... at googlegroups.com<javascript:>>
Date: Wednesday, August 31, 2016 at 10:57 AM
To: ChiBolts <chib... at googlegroups.com<javascript:>>
Subject: Freq Command on %gra Tier

Dear All,

Thanks to my previous thread with Brian, I am excited to examine grammatical relations using the MEGRASP dependency analysis.  I was unsuccessful in figuring out the correct syntax to extract the frequency of  the following grammatical relations:  CMOD, XMOD, CPRED, XPRED.
Would someone be willing to help with that?

I am hoping to achieve a subordination index in order to assess syntactic complexity in a group of healthy adults at risk for AD.

Thank you!
Kimberly
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