On Thu, Jul 22, 2010 at 10:04 PM, vasu <tewari.v...@gmail.com> wrote: > I am iterating through all partitions p of a fixed length k ( let's > say using Partitions (size, length=k) ) and I have written a function > which return true if the partition p has atleast one part repeated. I > can use a for loop and get the thing done easily. > But is there a way I can use filter() to achieve the same purpose ? > I hope my question is clear.
You can also do something like the following which is specific to the type of object that Partitions() returns: sage: P = Partitions(10,length=3).filter(lambda p: 3 in p); P Filtered sublass of Partitions of the integer 10 satisfying constraints length=3 sage: list(P) [[6, 3, 1], [5, 3, 2], [4, 3, 3]] sage: P.cardinality() 3 --Mike -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
