Fig. 3: Distribution of the star ratings for the PCAWG genomes.
From: Framework for quality assessment of whole genome cancer sequences

The samples are grouped by tissue type (as labelled along the x-axis), and then project. The project name and number of samples in the project are labelled at the top of the bar. The colour of the bar reflects what percentage of samples in the project have that star rating (corresponding to the legend). The bar on the far left shows the results for all samples. The plot demonstrates the varying quality of different projects—differences we believe come from when the genome was sequenced and the sequencing protocol used.