The `postsparkline` directive is supplied by the [[!iki
plugins/postsparkline desc=postsparkline]] plugin.

This directive uses the [[!iki plugins/sparkline desc=sparkline]] plugin to
create a [[sparkline]] of statistics about a set of pages, such as posts to
a blog.

# eksempler

	Bidragsinterval: 
	\[[!postsparkline pages="blog/* and !*/Discussion" max=100
	formula=interval style=bar barwidth=2 barspacing=1 height=13]]
	
	Bidrag per måned dette år: 
	\[[!postsparkline pages="blog/* and !*/Discussion" max=12
	formula=permonth style=bar barwidth=2 barspacing=1 height=13]]

# brug

All options aside from the `pages`, `max`, `formula`, `time`, and `color`
options are the same as in [[sparkline]] directive.

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 formulae:

* `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 year; the height represents how many
  posts were made that year.

The `time` parameter has a default value of "ctime", since formulae 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".

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