擅长:python、mysql、java
<p>是否要将数字转换为相应的类别?如果是,请尝试:</p>
<pre class="lang-py prettyprint-override"><code># Load first five flowers and store them in `y`
y = load_iris()['target'][:5]
# Declare dictionary to map each number to its corresponding text
dictionary = {0:'setosa',1:'versicolor',2:'virginica'}
# Translate each number to text using the dictionary
[dictionary[i] for i in y]
</code></pre>
<p>您可以对<code>numpy.where</code>执行相同的操作:</p>
<pre class="lang-py prettyprint-override"><code># Import numpy
import numpy as np
# Case-like structure
np.where(y == 0, 'setosa',
np.where(y == 1, 'versicolor',
'virginica'))
</code></pre>