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import graph; size(200,150,IgnoreAspect); file in=line(input("filegraph.dat")); real[][] a=dimension(in,0,0); a=transpose(a); real[] x=a[0]; real[] y=a[1]; draw(graph(x,y),red); xaxis("$x$",BottomTop,LeftTicks); yaxis("$y$",LeftRight,RightTicks);