擅长:python、mysql、java
<h3>纯溶液
<p>按70/20/10%的比例分成列车/验证/试验:</p>
<pre><code>train_df = df.sample(frac=0.7, random_state=random_seed)
tmp_df = df.drop(train_df.index)
test_df = tmp_df.sample(frac=0.33333, random_state=random_seed)
valid_df = tmp_df.drop(test_df.index)
assert len(df) == len(train_df) + len(valid_df) + len(test_df), "Dataset sizes don't add up"
del tmp_df
</code></pre>