Chartとかgnuplotが便利そう。 使い方はそれぞれのサンプルから引用すると、 gnuplotの方は、 plotList [] (take 30 (let fibs = 0 : 1 : zipWith (+) fibs (tail fibs) in fibs)) plotListStyle [] (defaultStyle{plotType = CandleSticks}) (Plot2D.functionToGraph (linearScale 32 (0,2*pi::Double)) (\t - plotFunc [] (linearScale 1000 (-10,10)) sin plotFuncs [] (linearScale 1000 (-10,10)) [sin, cos] plotParamFuncs [] (linearScale 1000 (0,2*pi)) [\