The postsparkline directive is supplied by the [[!iki plugins/postsparkline]] plugin.
This plugin uses the [[!iki plugins/sparkline]] plugin to create a [[sparkline]] of
statistics about a set of pages, such as posts to a blog.
examples
Post interval:
\[[!postsparkline pages="blog/* and !*/Discussion" max=100
formula=interval style=bar barwidth=2 barspacing=1 height=13]]
Posts per month this year:
\[[!postsparkline pages="blog/* and !*/Discussion" max=12
formula=permonth style=bar barwidth=2 barspacing=1 height=13]]
usage
All options aside fron the pages, max, formula, time, and color
options are passed on to the sparkline plugin.
You don't need to specify any data points (though you can if you want to).
Instead, data points are automatically generated based on the creation
times of pages matched by the specified pages [[ikiwiki/PageSpec]]. A
maximum of max data points will be generated.
The formula parameter controls the formula used to generate data points.
Available forumlae:
interval - The height of each point represents how long it has been
since the previous post.perday - Each point represents a day; the height represents how
many posts were made that day.permonth - Each point represents a month; the height represents how
many posts were made that month.peryear - Each point represents a day; the height represents how
many posts were made that year.
The time parameter has a default value of "ctime", since forumae use
the creation times of pages by default. If you instead want
them to use the modification times of pages, set it to "mtime".
To change the color used to draw the sparkline, use the color parameter.
For example, "color=red".
