Hi Rob;
----- Messaggio originale ----- > Da: Rob Weir ... > > On Dec 18, 2012, at 10:12 AM, Pedro Giffuni wrote: > >> Hello; >> >> Just to get the general public to know some of the things there are going > on in >> the AOO code, Andrea and I have been preparing a blog post about the new >> random number generator: >> >> > https://blogs.apache.org/preview/OOo/?previewEntry=random_numbers_in_calc_small >> > > Nice. Is it worth describing the testing? In particular, do we have > any tests that show clear improvements? Anything that can be shown in > a chart? > The test I did were pretty simple: I only generated a graph with 1000 values and then regenerated several times a complete row (more that 1 million values) to see no values were negative or overflowed. The problem is that in the platforms I use the period of libc's rand() is already long enough that a graphic plot of just 500-1000 values wont show any periodicity. The algorithm is known to pass some very strict statistical tests though. Pedro.
