擅长:python、mysql、java
<p>矩阵可以用<code>scipy.spatial.distance</code>中的<code>cdist</code>直接创建:</p>
<pre class="lang-python prettyprint-override"><code>from scipy.spatial.distance import cdist
df_array = df[["LATITUDE", "LONGITUDE"]].to_numpy()
dist_mat = cdist(df_array, df_array)
pd.DataFrame(dist_mat, columns = df["CITY"], index = df["CITY"])
</code></pre>