What is the relevance of the Peptides per fraction chart
On the Import Data screen, a graph in the bottom left corner of the window shows how many peptides were identified in each fraction. Ideally, the peptides would be evenly distributed across the fractions.
![Ideal peptide distribution](images/peptides_per_fraction_ideal.png)
If the majority of peptides have been identified in a small number of fractions, Progenesis QI for proteomics will alert you to this.
![Not ideal peptide distribution](images/peptides_per_fraction_not_ideal.png)
In such situations, the same quality of results could probably be achieved while creating fewer fractions.