Table 1. The datasets of nine cancer types for analyzing batch effects.
| Cancer type | Abbreviation | Number of batch | Number of Laboratory | Number of Tumour samples | Number of normal samples |
| Ovarian serous cystadenocarcinoma | OV | 13 | 17 | 520 | 35 |
| Colon adenocarcinoma | COAD | 9 | 5 | 168 | 23 |
| Lung adenocarcinoma | LUAD | 4 | 11 | 128 | 27 |
| Lung squamous cell carcinoma | LUSC | 5 | 12 | 115 | 31 |
| Stomach adenocarcinoma | STAD | 3 | 3 | 82 | 61 |
| Kidney renal clear cell carcinoma | KIRC | 6 | 10 | 219 | 205 |
| Glioblastoma multiforme | GBM | 9 | 13 | 264 | 5 |
| Breast invasive carcinoma | BRCA | 3 | 9 | 186 | 2 |
| Rectal adenocarcinoma | READ | 5 | 4 | 70 | 7 |