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Hi all, I wonder if there is any way to calculate a moving average on an irregular time series, or use the rollapply function in zoo? I have a set of dates where I want to check if there has been an event 14 days prior to each time point in order to mark these timepoints for removal, and can't figure out a good way to do it. Many thanks in advance! Gustaf Example data:

So, one of the things I''ve always wanted to do was expand upon the simplicity of the Lightbox Gone Wild! object that the coders at www.particletree.com put together months ago. I used it on an application I wrote to organize my own picture albums on my localhost web server, but I had to hack it apart to get it to do the things I wanted it to do. I looked at the Prototype Window