R code

By looking at the gene expression data in the file$1`$ and file$2`$ data frames, you can see that some genes have a positive log $2$ change and others have a negative log $2$ change. Create a data frame called file$1\_$up containing only genes that are upregulated in Stress Treatment $($treatment$\_$condition $1)$ compared to control $($control$\_$notreatment$)$