how to compare a cell with a group when to compare protein levels between three groups how to compare protein expression between cell type r molecule to compare protein expression how do you compare 2500 samples using r how to compare a cell type in a protein how can to compare two groups of protein in r how can you compare a lysate with a group r how can a human test compare protein expression in 3 groups how to compare protein levels between groups how can r compare the expression of 1750 proteins how does R compare the expression of 1750 proteins? how do you compare two groups of proteins with r how can r compare between 3 groups how to compare protein levels between a group of cells how can r compare a group comparing r levels between 2 groups how many samples do i need to compare with the r how can you compare a number of proteins using r how many samples in r?