找出一组数据的峰值，找出一组数据峰值,#-*- coding=

找出一组数据的峰值，找出一组数据峰值,#-*- coding=

#-*- coding=utf-8 -*-data = [1, 1.1,1.2, 1.3, 1.5, 1.6 , 1.7 , 1.8,  2, 3, 2, 3, 4, 3, 4, 5, 4, 3, 1.8]#每个顶点的index， D（Down）,U(Up)apex_index = []#趋势-1(Down), 0, 1(Up)qs = 0#偏离值和偏离百分比plz_p = 0.2#当前值min_index = max_index = 0for index, num in enumerate(data):    min_dqz = data[min_index]    max_dqz = data[max_index]    min_plz = min_dqz * plz_p    max_plz = max_dqz * plz_p    print '='*10, index, '='*10    print 'plz:', num - min_dqz, min_plz, 'qs:', qs, 'min_index:', min_index, 'up'    print 'plz:', num - max_dqz, max_plz, 'qs:', qs, 'max_index:',  max_index, 'down'    #上升    if (num - min_dqz ) >0:        if (num - min_dqz- min_plz) > 0:            if qs != 1:                apex_index.append( 'U%s'%min_index )                max_index = index                max_dqz = num                print 'U%s'%min_index            qs = 1    #下降    if (num - max_dqz) <0:        if (num - max_dqz) < -max_plz:            if qs!=-1:                apex_index.append( 'D%s'%max_index )                min_index = index                min_dqz = num                print 'D%s'%max_index            qs = -1    if num > max_dqz:        max_index = index    if num < min_dqz:        min_index = indexprint apex_index, qs, max_index, min_indexraw_input()#该片段来自于http://byrx.net