python scikit-learn clustering with missing data
<p>I want to cluster data with missing columns. Doing it manually I would calculate the distance in case of a missing column simply without this column.</p>

<p>With scikit-learn, missing data is not possible. There is also no chance to specify a user distance function.</p>

<p>Is there any chance to cluster with missing data?</p>

<p>Example data:</p>

<pre><code>n_samples = 1500
noise = 0.05  
X, _ = make_swiss_roll(n_samples, noise)

rnd = np.random.rand(X.shape[0],X.shape[1]) 
X[rnd&lt;0.1] = np.nan
</code></pre>