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.