[Haskell-cafe] ANNOUNCE: game-probability-1.1

[Neil Brown]

Hi,

I've just released version 1.1 of my game-probability library.  It's 
intended to be an easy way to investigate the probability of various 
dice rolls and card draws (the latter is the new addition for the 1.1 
release), using a Haskell library/EDSL.  It has various examples in the 
documentation, plus a few blog posts on its design (all links below).

Hackage: http://hackage.haskell.org/package/game-probability
Docs (while waiting for Hackage to generate): 
http://twistedsquare.com/game-probability-1.1/
Blog posts:
http://chplib.wordpress.com/2010/08/13/nice-dice-in-haskell/
http://chplib.wordpress.com/2010/08/23/sharp-cards-in-haskell-drawing-cards/
http://chplib.wordpress.com/2010/09/08/sharp-cards-in-haskell-the-odds/

As a quick taster, below are some examples of using the library.

Showing the probabilities of a dice roll prints out a bar chart -- here 
is the sum of two six-sided dice:

>  show (2 * d6)
2 : #
3 : ##
4 : ###
5 : ####
6 : #####
7 : ######
8 : #####
9 : ####
10: ###
11: ##
12: #

Querying probabilities of the outcomes of dice rolls:

>  chancePred (>= 16) (3*d6)
5 % 108

The chance of drawing different numbers of Copper cards in a starting 
hand of 5 drawn from 7 Copper and 3 Estate (this is from the card game 
Dominion):

>  chanceMap (makeCards $ replicate 7 "Copper" ++ replicate 3 "Estate") (drawCount (== "Copper") 5)
fromList [(2,1 % 12),(3,5 % 12),(4,5 % 12),(5,1 % 12)]


Thanks,

Neil.