Filtering the data by cycle. This figure is a closer exploration of the bubble on tile 47 analyzed in Figure 2. The tileQC system allows the output of the plotQTile function to be filtered according to cycle. This graph was generated using plotQTile and the cycles option. Fig. 3a shows the minimum QAG-score across cycles 1–27 by using cycles = 1:27, Fig. 3b restricts to the 28th cycle by using the cycle = 28 option, and Fig. 3c restricts to cycles 28–32. From these 3 tiles it is clear that the problem behind the bubble occurred during cycle 28.