The king_tableaux is an iterator not a function. it is used in the last three lines.
if you want a list look inside no_of_king_tableaux On Sunday, 8 March 2020 21:41:34 UTC, Soheli Das wrote: > > Thank you Bruce!! Indeed the function looks tidier. > The third function gives me this message: "<generator object king_tableaux > at 0x6ffea35729a8>". The 'p' is supposed to mean the partition right? > > Once again thank you for your help. I really appreciate it! > > -Soheli > > On Sunday, March 8, 2020 at 5:26:41 AM UTC-4, Bruce wrote: >> >> Thank you for helping me. I created the function: >> >> sage: def is_king_tableau(t,no_of_rows): >> ....: for i in range(no_of_rows): >> ....: if t[0][0] != 1: >> ....: return False >> ....: elif t[i][0] <= 2*i: >> ....: return False >> ....: else: >> ....: i=i+1 >> ....: return True >> >> >> I have tidied up your function and written some simple functions to show >> how it is used. >> I hope this will encourage you to learn more about Python, make further >> improvements and write your own functions. >> >> The last three lines are not a function but use the iterator to show the >> motivation for the definition of a King tableau. >> >> def is_king_tableau(t): >> """A function which tests if a semistandard tableau is a King >> tableau.""" >> if t[0][0] != 1: >> return False >> for i, row in enumerate(t): >> if row[0] <= 2*i: >> return False >> return True >> >> def no_of_king_tableaux(p): >> """A function which finds the number of King tableaux of given >> shape.""" >> return len([t for t in SemistandardTableaux(p) if is_king_tableau(t)]) >> >> def king_tableaux(p): >> """An iterator for the set of King tableaux of given shape.""" >> for t in SemistandardTableaux(p): >> if is_king_tableau(t): >> yield t >> >> for t in king_tableaux([2,2]): >> t.to_Gelfand_Tsetlin_pattern().pp() >> print "\n" >> > -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-combinat-devel/197f4260-41cb-4a90-907c-ab477555624d%40googlegroups.com.
