[SRILM User List] why some trigrams are lost?

[王秋锋]

Hi,all:
 
  I'm trying to get the trigram from the text with the command:
  "ngram-count -text char.txt -lm char.tri -order 3"
 and the content of char.txt is: a b a b a d  a e

and only one trigram in the result file char.tri,
why other trigram are lost? like "b a b" , "b a d" ,...

the content of char.tri is :

\data\
ngram 1=6
ngram 2=7
ngram 3=1

\1-grams:
-0.9208187 </s>
-99 <s> -0.06445797
-0.3767507 a -0.4313637
-0.6575773 b -0.2405493
-0.9208187 d -0.06445797
-0.9208187 e -0.2455126

\2-grams:
-0.30103 <s> a
-0.39794 a b 0
-0.69897 a d
-0.69897 a e
-0.1760913 b a
-0.30103 d a
-0.30103 e </s>

\3-grams:
-0.1760913 a b a

\end\

2010-07-22 



王秋锋 
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