Friday 15 June 2007

New BoA algorithm for idmclib and RiDMC

First of all, the news: idmclib-0.6.0 and RiDMC-0.6-0 released. They can be downloaded from the downloads section of the idmclib home page.

Special thanks to Marji Lines who, after trying out RiDMC-0.5-3, pointed out that there are interesting cases where the 'fast' BoA (Basins of Attraction) algorithm provided by idmclib simply doesn't work at all.

Following her suggestions, the slower (but sometimes more precise) algorithm already developed in the stand-alone version of iDMC has been added to the idmclib C library .

In brief, the main difference w.r.t. the faster algorithm is that there is a preliminary phase where all attractors are found, before actual plotting.

Now idmclib has a small set of new function dedicated to the new BoA algorithm, while the RiDMC package has been uppgraded accordingly, by adding 3 more options to the Basin R function. A nice example has been added to the Basin help page to illustrate this change. Have fun with it!