Re: List Position
- To: mathgroup at smc.vnet.net
- Subject: [mg15794] Re: List Position
- From: "Martin Rommel" <rommel at semitest.com>
- Date: Sun, 7 Feb 1999 02:04:11 -0500 (EST)
- Organization: EarthLink Network, Inc.
- References: <79eagc$9ig@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Harry flynn wrote in message <79eagc$9ig at smc.vnet.net>...
>Can anyone tell me how I find the position in a list of the first value
>less than or equal to zero.
>For example, how can I get Mathematica to tell me that in the list
>{{1},{1},{2},{8},{-3}}
>that the first value of interest to me is position 5. Thanks in advance.
>Harry.
It sure is ugly, but it works.
lst={{1},{1},{2},{8},{-3}};
Position[lst,Select[Flatten[lst],#<=0&]]//Flatten//First
I am looking forward to see some more elegant solutions.
Martin.