Table 1.

The characteristic of data in this study.

Datasets	Sources	Data Types	Samples
TCGA-LGG	TCGA	gene expression RNAseq	509
CGGA-325	CGGA	mRNA sequencing	172
CGGA-693	CGGA	mRNA sequencing	420
Rembrandt	CGGA	mRNA microarray data	121
E-MTAB-2768	ArrayExpress	array assay	63
E-MTAB-3892	ArrayExpress	array assay	142
Total	/	/	1427