---Oleg Kobchenko wrote: > This is a great analysis approach, and a good example > of practical application of J in data anylysis. > It warrants placing on a Wiki: scripts, plot results etc.
I had the same thought! > > > > From: Brian Schott <[EMAIL PROTECTED]> > > > > It looks as if there has been a gradual tendency for > > Programming messages to get shorter over during the period > > for which I could extract monthly archive data, from October > > 2005 to present. A plot of my results, which is > > deseasonalized as be for, using the (CMA) centered moving > > average can be viewed at the following link. [Actually it is > > more common for CMA's to be computed using the mean rather > > that the median, but I am partial to the median.] The > > contents of the temp/ files below have been posted earlier > > so I have not shown them here. > > > > > http://www.pixentral.com/show.php?picture=130j3mHm7m0MfkyCzBLkowUhjU66 > > > > > > > > My analysis went as follows. > > > > load 'plot' > > load 'stats' > > load '/Users/brian/j602-user/temp/13.ijs' > > $programming > > 2682 > > $p =: programming > > 2682 > > $size =: |.". @((_5}.(>:@i:&'t')}.]));._2 p > > 34 > > load '/Users/brian/j602-user/temp/16.ijs' > > $data =: readdata yearmonth 5 10 34 > > 34 > > plot size%~data > > plot }:size%~data > > 'xtic 12' plot -:((12 median \])@}:+(12 median > \])@}.)}:size%~data ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
