To use the phyloP scores, it is helpful to know the distribution of
those scores. For this we go to the Graph/Display Data section and
select the Histogram tool. In the history panel we can see what
column the scores are in, and a few of the values (blue box). The
PhyloP tool adds a column to its input dataset, and as expected the
last column is new and contains numbers. Select the dataset with the
phyloP scores and indicate the column that has the score. Entering a
large number of bars gives a finer resolution in the output. Adding
a descriptive title and label are not required, but are helpful when
coming back to this history later. Click Execute to generate the
graph.
![[screen shot]](histWithArrows.png)