Mathematica 9 is now available
Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2008

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: how to get rid of quotation marks in out put data

  • To: mathgroup at smc.vnet.net
  • Subject: [mg92267] Re: how to get rid of quotation marks in out put data
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Thu, 25 Sep 2008 05:31:51 -0400 (EDT)

On 9/24/08 at 3:30 AM, karami at geo.uu.nl (Pasha Karami) wrote:

>I have a data in this format (i get it from StringSplit):
>{{"2","3",............},{"1","2",.....},....} I would like to plot
>these data but I can not and I guess it is because of the ""
>(quotation marks). Do you have any idea how I can get rid of them?

I assume your real question is how to convert numbers formatted
as strings to numbers you can manipulate as numbers in
Mathematica. The answer is to use ToExpression. That is

ToExpession["2"]

will output the integer 2 that can be used in subsequent operations.

If there are quotes embedded in the string you need to convert
to numbers, these can be removed using StringReplace. Specifically,

StringReplace[string, "\""->""]

will remove any embedded quote characters. But the result of
this StringRepplace is still a string, not a number you can add,
subtract etc from other numbers.


  • Prev by Date: Re: Re: the graphic of a function
  • Next by Date: Re: Re: Re: External packages, Manipulate, and MathPlayer
  • Previous by thread: Re: how to get rid of quotation marks in out put data
  • Next by thread: Re: how to get rid of quotation marks in out put data