add median and mode to stats

[martin]

Add

• the median (the middle item) and
• the mode (the most frequently occurring value)

of shots in a edl file (and per reel?). Use a maximum of one decimal.

See

 http://www.cinemetrics.lv/bordwell.php

and

 http://www.cinemetrics.lv/salt.php

for more information.

[martin]

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[martin]

Add also median and mode lines to diagram as is done for ASL.

[martin]

Added median, see [235] in both xml data, and presented as numbers and in diagram.

[martin]

Added histogram showing the number of edits of a given size. This is better than calculating the mode of edit shots.

TODO:

change &lt; to less-then-or-equal to, since there may be edits that are overlooked if the length of the edit is exactly 'x' and the bars in the histogram count edits of length >x and <x. Find out what the html/xml-entity for less-than or equal is and put it in:

<xsl:variable name="interval_2" select="count(/edl/edits/edit[record_difference/seconds &gt; (1 * $interval_size) and record_difference/seconds &lt; (2 * $interval_size)])"/>

and in

<xsl:with-param name="x_points" select="concat('&lt;', $interval_size * 1, 

clean up mode diagram code

[martin]

Replying to martin:

change &lt; to less-then-or-equal to

Fixed.

[martin]

Replying to martin:

clean up mode diagram code

Well, it looks ok enough.

Sorted out use of colours so that the same charts have the same colours in the the different diagrams. Added some examples to the diagrams. Should review the explanation and colours, and update the user guide. Make new tickets for these tasks.