Bernard Devlin wrote:
However, it looks to me like the existing indexes don't contain enough
information for you to calculate frequency of occurrence (a measure of
relevance).
Once again, MetaCard to the rescue! :)
Raney included this little gem in MC's Examples stack, and using "repeat
for each" and arrays it's blazing fast, able to make a frequency table
for even large files in almost no time at all:
on mouseUp
put empty into field "result"
answer file "Select a text file for input:"
if it is empty then exit mouseUp
# let user know we're working on it
set the cursor to watch
put it into inputFile
open file inputFile for read
read from file inputFile until eof
put it into fileContent
close file inputFile
# wordCount is an associative array, its indexes are words
# with the contents of each element being number of times
# that word appears
repeat for each word w in fileContent
add 1 to wordCount[w]
end repeat
# copy all the indexes that is in the wordCount associative array
put keys(wordCount) into keyWords
# sort the indexes -- keyWords contains a list of elements in array
sort keyWords
repeat for each line l in keyWords
put l & tab & wordCount[l] & return after displayResult
end repeat
put displayResult into field "result"
end mouseUp
--
Richard Gaskin
Fourth World
Rev training and consulting: http://www.fourthworld.com
Webzine for Rev developers: http://www.revjournal.com
revJournal blog: http://revjournal.com/blog.irv
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