How do we extract all the cases of Equal expressions from a Piecewise expression output? (here for example: looking for the support of the random variable Y)
Hi Raspi, interesting things you are doing! Regarding your question - maybe like so:
Sort@Cases[expr, Equal[_, val_] :> val, Infinity]
To prevent early evaluation
Cases[expr, HoldPattern[Equal[_, _]], Infinity] (* {y == 2, y == 12, y == 3, y == 11, y == 4, y == 10, y == 5, y == 9, y == 6, y == 8, y == 7} *)
Hi Raspi, I always enjoy reading your questions! Here it took me a while to understand why your first attempt fails: Equal[_, _] evaluates to True before anything else is happening ...
Equal[_, _]
True
Thanks everyone, you guys made my day!
True ... omg that was too funny. I wouldn't have figured that one out. Definitely made it into the book and for further use in there. Next week I'm learning the basics of Bernoulli trials and binomial distribution yay!
