Typically, you would begin a miRNA expression analysis with the same steps outlined in the Importing Affymetrix CEL files section of the Gene Expression tutorial. Here, the data has already been imported and attributes added. 

To being our analysis, we will open the miRNA Expression workflow. 

The miRNA Expression workflow provides a series of steps for analyzing miRNA expression data and integrating it with gene expression data (Figure 1).

 

Exploratory data analysis