Click here to see the SAS code.
Click here to see the example.
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This is one version of the famous (or infamous) Hockey Stick Graph,
which shows several temperature estimates (proxies) for the last
1000 years. It is nicknamed a hockey stick graph because the
numbers towards the end seem to turn upward sharply, resembling
a hockey stick.
Here are some links where I got this data:
Links to Graph & Data
So-Called Hockey Stick.
And, here are some webpages that claims to debunk the hockey-stick graph:
Hockey-Stick plot used modified data
New Low in Climate Science
Hockey Stick, RIP
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There are several nice SAS & SAS/Graph features demonstrated in this graph...
o The data are read directly from a webpage, via "filename url".
o Multiple data series are combined with proc sql.
o Multiple lines are overlaid.
o The order of the items in the legend is controlled via the order
the variables are specified in the plot statement.
o The legend value= is used to allow >32 character legend values
(which would otherwise be truncated at 32-characters).
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