【发布时间】:2013-11-06 22:41:11
【问题描述】:
我有一个简单的数据文件要绘制。
这是一个数据文件的内容,我将其命名为“ttry”:
0.27 0
0.28 0
0.29 0
0.3 0
0.31 0
0.32 0
0.33 0
0.34 0
0.35 0
0.36 0
0.37 0
0.38 0.00728737997257
0.39 0.0600137174211
0.4 0.11488340192
0.41 0.157321673525
0.42 0.193158436214
0.43 0.233882030178
0.44 0.273319615912
0.45 0.311556927298
0.46 0.349879972565
0.47 0.387602880658
0.48 0.424211248285
0.49 0.460390946502
0.5 0.494855967078
0.51 0.529406721536
0.52 0.561814128944
0.53 0.594307270233
0.54 0.624228395062
0.55 0.654492455418
0.56 0.683984910837
0.57 0.711762688615
0.58 0.739368998628
0.59 0.765775034294
0.6 0.790895061728
0.61 0.815586419753
0.62 0.840192043896
0.63 0.863082990398
0.64 0.886231138546
0.65 0.906292866941
0.66 0.915809327846
0.67 0.911436899863
0.68 0.908179012346
0.69 0.904749657064
0.7 0.899519890261
0.71 0.895147462277
0.72 0.891632373114
0.73 0.888803155007
0.74 0.884687928669
0.75 0.879029492455
0.76 0.876114540466
0.77 0.872170781893
0.78 0.867541152263
0.79 0.86274005487
0.8 0.858367626886
0.81 0.854080932785
0.82 0.850994513032
0.83 0.997170781893
0.84 1.13477366255
0.85 1.24296982167
0.86 1.32690329218
0.87 1.40397805213
0.88 1.46836419753
0.89 1.52306241427
0.9 1.53232167353
0.91 1.52906378601
0.92 1.52211934156
0.93 1.516718107
0.94 1.51543209877
0.95 1.50660150892
0.96 1.50137174211
0.97 1.49408436214
0.98 1.48816872428
0.99 1.48088134431
1 1.4723079561
然后我使用 matplotlib.pyplot.plotfile 来绘制它。这是我的python脚本
from matplotlib import pyplot
pyplot.plotfile("ttry", cols=(0,1), delimiter=" ")
pyplot.show()
但是出现以下错误:
C:\WINDOWS\system32\cmd.exe /c ttry.py
Traceback (most recent call last):
File "E:\research\ttry.py", line 2, in <module>
pyplot.plotfile("ttry",col=(0,1),delimiter=" ")
File "C:\Python33\lib\site-packages\matplotlib\pyplot.py", line 2311, in plotfile
checkrows=checkrows, delimiter=delimiter, names=names)
File "C:\Python33\lib\site-packages\matplotlib\mlab.py", line 2163, in csv2rec
rows.append([func(name, val) for func, name, val in zip(converters, names, row)])
File "C:\Python33\lib\site-packages\matplotlib\mlab.py", line 2163, in <listcomp>
rows.append([func(name, val) for func, name, val in zip(converters, names, row)])
File "C:\Python33\lib\site-packages\matplotlib\mlab.py", line 2031, in newfunc
return func(val)
ValueError: invalid literal for int() with base 10: '0.00728737997257'
shell returned 1
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显然,python 只是将 yaxis 数据视为 int。那么如何告诉python我使用float作为yaxis数据呢?
【问题讨论】:
-
一开始你在y列有一些
0s,你试过把它们改成浮点数吗? IE。0.0?
标签: python python-3.x matplotlib