Re: Count pattern
- To: mathgroup at smc.vnet.net
- Subject: [mg41301] Re: [mg41289] Count pattern
- From: "Mihajlo Vanevic" <mvane at eunet.yu>
- Date: Wed, 14 May 2003 08:08:24 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Soren, try In[ ]:= 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}; In[ ]:= cnt[t_, s_] := Range[Length[t]] + Length[s] - Flatten[Position[Sort[Flatten[{t, s + I}]], _Integer]]; In[ ]:= cnt[t, s] Out[ ]= {33, 30, 28, 27, 26, 25, 24, 23, 21, 20, 18, 17, 15, 13, 12, 10, 6} Regards, Mihajlo Vanevic 2003-05-13 ************************************************************** * At 2003-05-13, 04:19:00 * Søren_Merser, merser at image.dk wrote: ************************************************************** >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 **************************************************************