creates a set of reference scores, for which each
block's individual scores should correlate maximally too, but also the variance within
each block should be taken into account. A single component solution is equivalent to a
PCA on concatenated blocks scaled by the so called inverse inertia.</p>
    </div>
    <div class="section level2">
    <h2 id="references">References<a class="anchor" aria-label="anchor" href="#references"></a></h2>

<ul><li><p>Le Roux; B. and H. Rouanet (2004). Geometric Data Analysis