Re: ListLinePlot[] inside a loop

*To*: mathgroup at smc.vnet.net*Subject*: [mg82382] Re: ListLinePlot[] inside a loop*From*: Szabolcs Horvát <szhorvat at gmail.com>*Date*: Fri, 19 Oct 2007 04:52:59 -0400 (EDT)*References*: <ff789h$nrs$1@smc.vnet.net>

Luiz Melo wrote: > Hi mathgroup, > > Why is the plot of a list not displayed when ListLinePlot[] is used inside a Do > loop (Mathematica 6.0)? > For instance, suppose we want to produce the graphics of Sin[i*x] as a function > of x, each time i is iterated from 1 to 3 (in steps of 1). I naively tryed: > > Do[ListLinePlot[Table[{x, Sin[i*x Degree]}, {x, 0, 360}], > PlotRange -> {{0, 360}, {-1.1, 1.1}}], {i, 1, 3}]; In Mathematica 6, graphics are like any other value. Instead of being drawn as a side effect, they are simply /returned/ by plotting functions. Do[] always returns Null, so replace it with Table and remove the ; from the end. You might want to wrap the output in Column[] : Table[ListLinePlot[Table[{x, Sin[i*x Degree]}, {x, 0, 360}], PlotRange -> {{0, 360}, {-1.1, 1.1}}], {i, 1, 3}] // Column > The specifications "For[]" and "While[]" don't work either. While[] and For[] are better avoided in Mathematica. If you really insist on using such functions, then try Do[Print@ListLinePlot[Table[{x, Sin[i*x Degree]}, {x, 0, 360}], PlotRange -> {{0, 360}, {-1.1, 1.1}}], {i, 1, 3}] -- Szabolcs