Perhaps coincidentally, after I installed easy chart builder on my site, people visiting started getting a bunch of random third-party popups and one even was told the site had malware. I have now deactivated it to see if the problem continues. My hosting service checked it out and could find no malware. As I said, might be a complete coincidence, but I wanted to mention it in case it has happened to anyone else, or if you've heard of any hacking problems.
Thanks.
(Oh, and any plans to include a missing data function so that missing data aren't assigned to zero?)