Python 2.7值错误:解压缩需要2个以上的值

时间:2014-03-22 04:05:11

标签: python-2.7 numpy matplotlib unpack

我有Python 2.7 Win 32并安装了Matplotlib,Numpy,PyParsing,Dateutil。在IDLE中,我放在代码中:

import matplotlib
import matplotlib.pyplot as plt
import matplotlib.ticker as mticker
import matplotlib.dates as mdates
import numpy as np

def graphRawFX () :
    date,bid,ask = np.loadtxt,unpack=True,('GPBUSD1d.txt')
    delimiter=',',
    converters={0:mdates.strpdate2num('%Y%m%d%H%M%S') }
    fig = plt.figure(figsize=(10,7))
    ax1 = plt.subplot2grid((40,40), (0,0), rowspan=40, colspan=40)

    ax1.plot(date,bid)
    ax1.plot(date,ask)

    ax1.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d %H:%M:%S'))

    plt.grid(True)
    plt.show()

1 个答案:

答案 0 :(得分:0)

有三个变量但只有两个给定的值

date,bid,ask = np.loadtxt,unpack=True,('GPBUSD1d.txt')

您可能需要将该行更改为:

date=mdates.strpdate2num('%Y%m%d%H%M%S')
bid,ask = np.loadtxt,unpack=True,('GPBUSD1d.txt')