Rating Articles
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   In GroupLens, an article is rated on a scale from 1 to 5, inclusive.
Where 1 means something like this article is a waste of bandwidth and 5
means that the article was really good.  The basic question to ask
yourself is, "on a scale from 1 to 5 would I like to see more articles
like this one?"

   There are four ways to enter a rating for an article in GroupLens.

`r'
     This function will prompt you for a rating on a scale of one to
     five.

`k'
     This function will prompt you for a rating, and rate all the
     articles in the thread.  This is really useful for some of those
     long running giant threads in rec.humor.

   The next two commands, `n' and `,' take a numerical prefix to be the
score of the article you're reading.

`1-5 n'
     Rate the article and go to the next unread article.

`1-5 ,'
     Rate the article and go to the next unread article with the
     highest score.

   If you want to give the current article a score of 4 and then go to
the next article, just type `4 n'.