Re: Count pattern
- To: mathgroup at smc.vnet.net
- Subject: [mg41313] Re: Count pattern
- From: "Timo Koerber" <koerber at u.washington.edu>
- Date: Wed, 14 May 2003 08:13:39 -0400 (EDT)
- Organization: University of Washington
- References: <b9qabm$htm$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Here's the answer: t = {1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 17, 27, 28, 30, 36, 50}; s = {1, 1, 1, 2, 2, 3, 4, 5, 6, 7, 8, 8, 10, 12, 12, 14, 17, 20, 27, 27, 28, 30, 30, 36, 38, 40, 45, 50, 50, 50, 63, 132, 132}; f[l1_, l2_] := Table[Length[Select[l1, #1 \[GreaterEqual] l2[[x]] &]], {x, 1, Length[l2]}]; f[s, t] =>{33, 30, 28, 27, 26, 25, 24, 23, 21, 20, 18, 17, 15, 13, 12, 10, 6} Timo Koerber, University of Washington, Physics "Søren Merser" <merser at image.dk> wrote in message news:b9qabm$htm$1 at smc.vnet.net... > > hi there > > i need a litle help on a problem that has puzzeled me for some time > > i want to count the number of elements in s with value greater or equal > to each element in t > > t = {1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 17, 27, 28, 30, 36, 50} > > s = {1, 1, 1, 2, 2, 3, 4, 5, 6, 7, 8, 8, 10, 12, 12, 14, 17, 20, 27, > 27, 28, 30, 30, 36, 38, 40, 45, 50, 50, 50, 63, 132, 132} > > the result should be: {33, 30, 28, 27, 26, 25, 24, 23, 21, 20, 18, 17, > 15, 13, 12, 10, 6} > > > > kind regards soren > >