On Jun 7, 2009, at 1:41 PM, Brown, Tony Nicholas wrote:
Dear all,
I recently saw a graph on television that displayed selected
words/phrases in a speech scaled in size according to their frequency.
So words/phrases that were often used appeared large and words that
were
rarely used appeared small. The closest thing I can find on the web to
approximate what I saw can be found here:
http://stateoftheunion.onetwothree.net/ The example at that website is
more complicated but captures the general idea.
Would someone point me in the right direction in terms of replicating
such a graph.
Thanks in advance,
Tony
Tony,
What you are referring to is called a 'tag cloud'. See this page:
http://en.wikipedia.org/wiki/Tag_cloud
They are commonly used on wikis, Twitter and so forth. For example:
http://tweetstats.com/trends
The only thing that I found for R is by Gregor Gorjanc, but the
information seems to be dated:
http://www.bfro.uni-lj.si/MR/ggorjan/software/R/index.html#tagCloud
I have cc'd him here for any updates.
Otherwise, there are some links on the Wikipedia page and some other
applications such as Wordle:
http://www.wordle.net/
HTH,
Marc Schwartz
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