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Here is what I am trying to plot:

randomWalk := NestList[# + RandomReal[{-1, 1}] &, 0, 1000];
Show[Table[ListPlot[randomWalk, Joined -> True], {100}], PlotRange -> Automatic]

Which gives:

enter image description here

What I'd like to do is give the lines a bit of transparency so that it is clearer to see the density of the plot at various areas; i.e. the darker the area, the more overlapping lines there are at that point. Since this is a ListPlot though, how can you change the properties - i.e. opacity - of the lines?

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Putting the table inside ListPlot and setting the Opacity as part of the PlotStyle:

ListPlot[
  Table[randomWalk, {100}], 
  PlotStyle -> Directive[Blue, Opacity[0.25]], Joined -> True]

enter image description here

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    $\begingroup$ PlotStyle -> Opacity[1/5, Black] also works. $\endgroup$
    – Alexey Popkov
    Commented Apr 30, 2014 at 15:31
  • $\begingroup$ @Alexy - This one will run and run ;) $\endgroup$
    – Ymareth
    Commented Apr 30, 2014 at 15:33
  • $\begingroup$ Brilliant, thank you @Ymareth and Oska $\endgroup$
    – Aron
    Commented Apr 30, 2014 at 16:26

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