How do you add options to a function that is being mapped?

Question

Simple example:

Normally: ListPlot[list, Joined->True]

If I want to map ListPlot how do I keep the Joined option?

thanks.

Answer 1

If you consider the following lists:

SeedRandom@1; list1 = RandomReal[{0, 10}, {10, 2}];
SeedRandom@2; list2 = RandomReal[{0, 10}, {10, 2}];

One can easily Map ListPlot by doing:

Map[ListPlot, {list1, list2}]
(* eq. to: ListPlot /@ {list1, list2} *)

If you want to use Options with the ListPlot you need to define a function with the options in place. You can use either a conventional pattern-based function:

lp[x_] := ListPlot[x, Joined -> True, PlotMarkers -> Automatic]

or you could use a pure function:

lp = ListPlot[#, Joined -> True, PlotMarkers -> Automatic]&

Then you can use it as follows:

Map[lp, {list1, list2}]
(* eq. to: lp /@ {list1, list2} *)

Of course, it can still be used without Map:

lp[{list1, list2}]