Understanding the TCGA Data Levels¶
TCGA Data Levels¶
For each type of data, there are typically three levels of data: * Level 1 typically represents raw, un-normalized data * Level 2 typically represents an intermediate level of processing and/or normalization of the data; * Level 3 typically represents aggregated, normalized, and/or segmented data.
The results of integrative or pan-cancer analyses are sometimes referred to as “Level 4” data. More information about Data Level Classification can be found on the NCI wiki.