Refuting Russian Claims

As is pointed to in the comments below, there is a refutation of the Russian IEA claims of data abuse by the CRU. The refutation is in the form of a graph purporting to depict the actual data in question, and concluding that there is little significant difference in the complete data set and the truncated set.



What is clear to me is that I need some good statistical analysis and graphing software. Any recommendations?

ADDENDUM:

From the comments at the source:

Another point of curiosity... Shoudnt the uncertanty regions of the graph above don't encompass either of the red or blue data sets. Isn't that a problem?

Posted by: ben | December 17, 2009 4:13 PM

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Not really. There's more than just Russia in the CRU series that Tim posted.

Posted by: MartinM | December 17, 2009 4:19 PM

Well, then. Any value of the graph shown is null and void. Undisclosed data manipulation is not science, it is at best, indeterminate, and at worst....