Some time ago now, I wrote a post about progressive enhancement of HTML web pages, including some examples of how HTML data tables could be enhanced to provide graphical views of the data contained in them.
I’m not sure if anyone is actively maintaining progressive enhancement browser extensions (I haven’t checked) but here are a couple more possible enhancements released as part of the Google visualisation API, as described in Table Formatters make Visualization tables even nicer:
A couple of other options allow you to colour a table cell according to value (an implementation of the ‘format cell on value’ function you find in many spreadsheets), and a formatter that will “format numeric columns by defining the number of decimal digits, how negative values are displayed and more”, such as adding a prefix or suffix to each number.
I’m not sure if these features are included in the
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Manipulate Magazine: Math 4 You By Us Group Illinois 