f length 10, where element i is 1 if the digit is i-1 and 0 otherwise.
The dataset is split into two parts: 55,000 data points of training data 
and 10,000 points of test data.</p>
    

    <pre class="usage"><span class='no'>mnist</span></pre>
        
    <h2 class="hasAnchor" id="format"><a class="anchor" href="#format"></a>Format</h2>

    <p>A list with two elements: train and test. 
 The training set mnist$train is a list with two entries: images and labels,
 located at mnist$train$images, mnist$trai