Re: find position in a list made by string by searching
- To: mathgroup at smc.vnet.net
- Subject: [mg130366] Re: find position in a list made by string by searching
- From: Bob Hanlon <hanlonr357 at gmail.com>
- Date: Thu, 4 Apr 2013 22:34:16 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
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- References: <20130404025017.69FA06A57@smc.vnet.net>
list1 = {"a", "b something", "a", "a", "b", "c", "b"}; pos = Position[list1, _String?( StringLength[#] > 1 && StringTake[#, 1] == "b" &)] {{2}} Bob Hanlon On Wed, Apr 3, 2013 at 10:50 PM, Joug Raw <jougraw at gmail.com> wrote: > > I have a list of strings like > list1={{"a", "b something", "a", "a", "b", "c", "b"} > In this list, 'something' is a sting that I will not know in advanced and > there are several spaces between the 'b' and the 'something' in one string. > The number of the spaces is unknown. > > I want to find out the position of the this "b something" sting in the > list. So, I did, > > Position[list1, "b*"] > > and I also tried, > Position[list1,"b"~~___ ] > > both of them gave me {} as results. > > Also Cases[list1,"b"~~___] or Cases[list1, "b*"] does not work. I can get > the correct position only if I give the exact "b something" as the > searching pattern. What is the easiest way to search with a incomplete > string pattern in this case? Thanks for your help. > > >
- References:
- find position in a list made by string by searching incomplete string
- From: Joug Raw <jougraw@gmail.com>
- find position in a list made by string by searching incomplete string