擅长:python、mysql、java
<p>您可以用<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.shape.html" rel="nofollow">^{<cd2>}</a>尝试<a href="http://docs.scipy.org/doc/numpy-1.10.1/reference/generated/numpy.ndarray.reshape.html" rel="nofollow">^{<cd1>}</a>:</p>
<pre><code>print df.shape
(7, 2)
X = df.Xi.reshape((df.shape[0],1))
print X
[[-2.55299 ]
[ 1.764052]
[-1.791328]
[-1.214077]
[-1.44494 ]
[ 0.19507 ]
[ 1.480515]]
Y = df.Yi.reshape((df.shape[0],1))
print Y
[[-218.408328]
[ 155.118872]
[-128.884326]
[ -91.571734]
[-122.267726]
[ 12.248124]
[ 135.444007]]
</code></pre>