无法将字符串转换为浮动w / HUGE TXT FILE

时间:2018-06-13 03:54:26

标签: python python-3.x data-analysis

我有一个巨大的文本文件It is the second txt file labeled hhrr1996221.txt.zip

我试图通过计数与时间分析数据,时间从2毫秒开始,然后给出6个数据集(计数)并重复。

自去年以来我没有使用过python,虽然我确实希望提高我的编码技巧。我使用了以下代码:

           import numpy as np
           hh=np.loadtxt('hhrr1996221.txt', delimiter=',')
           time= hh[1:,0]

我只是想测试一下,如果我得到一个数组,我最终也想得到计数,然后绘制图表

我得到的错误信息是

runfile('C:/Users/fahad/.spyder-py3/untitled0.py', wdir='C:/Users/fahad/.spyder-py3')
Traceback (most recent call last):

File "<ipython-input-44-d1860d9262f7>", line 1, in <module>
runfile('C:/Users/fahad/.spyder-py3/untitled0.py', wdir='C:/Users/fahad/.spyder-py3')

File "C:\Users\fahad\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 705, in runfile
execfile(filename, namespace)

File "C:\Users\fahad\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 102, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)

File "C:/Users/fahad/.spyder-py3/untitled0.py", line 9, in <module>
hh=np.loadtxt('hhrr1996221.txt', delimiter=',')

File "C:\Users\fahad\Anaconda3\lib\site-packages\numpy\lib\npyio.py", line 1092, in loadtxt
for x in read_data(_loadtxt_chunksize):
File "C:\Users\fahad\Anaconda3\lib\site-packages\numpy\lib\npyio.py",     line 1019, in read_data




   items = [conv(val) for (conv, val) in zip(converters, vals)]

  File "C:\Users\fahad\Anaconda3\lib\site-packages\numpy\lib\npyio.py", line 1019, in <listcomp>
items = [conv(val) for (conv, val) in zip(converters, vals)]

  File "C:\Users\fahad\Anaconda3\lib\site-packages\numpy\lib\npyio.py", line 738, in floatconv
return float(x)

ValueError: could not convert string to float: '2.0 264 264 244 252 504 252'

我很感激所有的帮助,如果你们有不同的代码我可以使用,请告诉我并指导我完成它。

干杯。

1 个答案:

答案 0 :(得分:2)

您的分隔符是一个空格。

<强>尝试:

import numpy as np
hh=np.loadtxt(filename, delimiter=' ', skiprows=1)
time= hh[1:,0]
print( time )

<强>输出:

[  2.10000000e+00   2.20000000e+00   2.30000000e+00 ...,   8.64027000e+04
   8.64028000e+04   8.64029000e+04]