Re: Import variable and data

*To*: mathgroup at smc.vnet.net*Subject*: [mg32739] Re: Import variable and data*From*: "Mark Van De Vyver" <mvdv at bigfoot.com>*Date*: Thu, 7 Feb 2002 05:12:21 -0500 (EST)*Organization*: The University of Western Australia*References*: <a3qr9f$29m$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Thanks to those that responded... one solution suggested was: Hold[ ToExpression[ inputData[[1]] ] ] = inputData[[2]] Thanks again Mark "Mark Van De Vyver" <mvdv at bigfoot.com> wrote in message news:a3qr9f$29m$1 at smc.vnet.net... > Hi MathGroup, > > I'm having trouble with the following variable and data import: > The import file is input.txt: > > a b c d > 1 23 45 678 > > inputData=Import[input.txt,"Table"] > {{a,b,c,d},{1,23,45,678}} > > This all works OK. > Head[..] indicates the a,b,c and d are strings, which is fine, because > ToExpression[..] changes them to symbols. What I'd like to do is use > inputData to do the following: > > {a,b,c,d}={1,23,45,678} > > However, if I try > > ToExpression[ inputData[[1]] ] = inputData[[2]] > > I get an error: > > Set::write: Tag ToExpression in ToExpression[a] is Protected. > > If I then enter 'a' in Mathematica I do not get 1 returned! No matter how I try I > can't work it so that when I enter the symbol 'a' in Mathematica I get the value > from inputData[[2]]. > > Not sure if that makes sense? > > >