This node draws enrichment curves often used in virtual screening. For this the user can choose a column by
which the data is sorted and represents the x-axis. The values on the y-axis are formed by the sum of the
hits in a second column that is also selected by the user. A row is considered a hit if the value is greater
than 0. The steeper the resulting curve, the better the enrichment is. Optionally the y-axis can show the
sum of the hit values instead of the number of hits.
The two gray lines in the view show the enrichment if the data points were ordered randomly (lower diagonal) and the optimal enrichment if all hits are ordered before the first non-hit (upper diagonal).
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