虽然用hist bar画了频率直方图，但是画的图表的横坐标是与bar对应的整数(1，2， 10 )，但是我想把横坐标作为原来的数据，该怎么办呢？
x=[ 0.7882170160.77976169.7726419310.7754840050.7656365680.7831169.801468530.7933759670.77777791910 4.8038608760.7563914080.7625572360.7991712290.809955663.75607222.750685499.7679431740.78333653110.76591454544440 795980.7716582350.7674756030.7827673310.7478564740.768810301.732845698.770207402.76894155.783783707710.78278810 . 76049730.8009799560.7960326470.7692812430.78959660.7988681120.787409101.780281809.7444379613.7617771240 . 8117428880.7914674940.7943761960.8004608710.745631510.751660057.7893634680.7515242740.7776094301 920.7826031960.782030967.787074490.786436406.804078859.795700274.7875749870.7941737260.7944444444471710 710485110.793893116.7595401750.7706605990.789069367.795276367.762530720.759701582.73555097090.789060 0.759754219621969.73676 6.764614029.7864405870.7419423380.795689870.807315449.7524328290.7979567880
图形
n=hist(x，10 ) )。
bar(n/length ) (x ) )