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Re: Converting a list of strings to a single space-delimited string

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122853] Re: Converting a list of strings to a single space-delimited string
  • From: "Dr. Wolfgang Hintze" <weh at snafu.de>
  • Date: Sat, 12 Nov 2011 07:35:39 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <j9geh9$ovb$1@smc.vnet.net> <j9is6c$8i3$1@smc.vnet.net>

"Dr. Wolfgang Hintze" <weh at snafu.de> schrieb im Newsbeitrag 
news:j9is6c$8i3$1 at smc.vnet.net...
>
> "Andrew DeYoung" <adeyoung at andrew.cmu.edu> schrieb im Newsbeitrag
> news:j9geh9$ovb$1 at smc.vnet.net...
>> Hi,
>>
>> I know that the command StringSplit can be used to convert a single
>> space-delimited string to a list of strings.  For example,
>>
>> B = "1 2 3";
>> mylist = StringSplit[B]
>>
>> gives a list mylist such that mylist = {"1", "2", "3"}.
>>
>> But what if I would like to go in the reveres direction -- convert
>> {"1", "2", "3"} to "1 2 3"?  Is there a good way to do this, other
>> than using a For loop and concatenating the elements of the list
>> together?
>>
>> Thanks so much.
>>
>> Andrew DeYoung
>> Carnegie Mellon University
>>
>
> It can be easily done:
> (* define data *)
> lst = {"1", "2", "3"}
>    {"1", "2", "3"}
>
> (* perform operation *)
> StringJoin @@ lst
>    "123"
>
> (* check type of result *)
> Head[%]
>    String
>
> Regards,
> Wolfgang
>
>
Sorry, but my solution is incorrect, because I missed the required " " 
(space) between the numbers.
Others have already given a correct solution here.

Regards,
Wolfgang




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