There's nothing like that built in at the moment. Each plot is drawn in its own CALayer which can be animated like any other layer. For example, you can slide it into place or fade it into view.

Core Plot ios animate scatter plot from plain, straight line to plot with actual data
Yesterday I said "shabbat shalom" to someone and he said we don't do that on Tisha b'Av that falls on Shabbat.  I thought that Shabbat trumps the day (and that's why we move the other observances).  Neither of us knew a source, and it hasn't come up yet in 9 be-Av on Shabbos .
