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各位大大,用np.loadtxt加载日期数据,照着书上抄的代码,为什么还不能将日期转换为数字呢
def datestrnum(s):
return dt.datetime.strptime(s,'%Y/%m/%d').date().weekday()
dates,close=np.loadtxt('f:\ifile\day_ticks.csv',delimiter=',',usecols=(4,5),converters={1:datestrnum},unpack=True)
出现错误:
invalid literal for float(): 2015/5/5
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