Re: a little more complex list operation

*To*: mathgroup at smc.vnet.net*Subject*: [mg40259] Re: a little more complex list operation*From*: atelesforos at hotmail.com (Orestis Vantzos)*Date*: Fri, 28 Mar 2003 04:31:25 -0500 (EST)*References*: <b5uoth$lks$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

The principle is simple: write the element-operation as a pure function and map it on the list: {f[#[[1]]],g[#[[2]]]}& /@ data Alternatively you can 'apply' the function to the elements of the list: {f[#1],g[#2]}& @@@ data Orestis Nathan Moore <nmoore at physics.umn.edu> wrote in message news:<b5uoth$lks$1 at smc.vnet.net>... > Thanks very much for all the previous replies. Another simple question - > though I guess this will require more complex syntax. Suppose I have the > list, > > data = {{x1,y1},{x2,y2},{x3,y3}} > > and I want to produce the result (for fitting/plotting) > > data2 = {{f[x1],g[y1]},{f[x2],g[y2]},{f[x3],g[y3]}} > > I assume that if there was only one transform I wanted to apply, f[x], > then I could say > data2 = f[data] > but how about this more complicated transform with functions f and g? > > again thanks! Your replies have been very helpful! > > Nathan Moore, University of Minnesota Physics