Example of the "prefix" axis tick option. This option adds a prefix to the tick label if and only if no formatString option is specified.

A new configuration option, $.jqplot.config.defaultTickFormatString, has been added as well. When no user formatString is specified, linear axes previously used a hard coded '%.1f' default format string. The config option controls this default format string. This allows an alternative way to format tick labels, with or without a prefix, if no formatString option is specified.