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compute ratio of number of occurrences of query string divided by total number of words
frequency(texts.vec, starts, patterns)
a list whose components are sub-lists
start integer starting line in text
end integer ending line in text
wPerLine integer words perline
wordSum integer sum of wPerLine
patterns a sub-list
integer pPerLine integer patterns per line
patSum integer total of pPerLine
fraction numeric ratio of patSum/wordSum
character vector of entire text
integer vector of starting positions
vector of character string query patterns
fr<-frequency(texts.vec,starts,patterns)
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