数値配列の正規化

2015/8/11

Python2.7.4

数値配列を0～1の範囲に正規化

def normalize(plotdata):
    """
    data = [1.24,1.2,2.68,2.44.・・・]
    """
    center = (max(plotdata)+min(plotdata))/2
    for i in range(len(plotdata)):
        plotdata[i] = plotdata[i] - center
    a = 1.0/max(plotdata)
    for i in range(len(plotdata)):
        plotdata[i] = (plotdata[i]*a)/2+0.5
    return plotdata