i have a " row counts" matrix characterized by 144 columns (samples) and 20437 rows (genes).
Samples are grouped in 5 different categories (W, E, R, Y, Z)
I would like to create a box-plot image using ggplot2 for one selected gene across different sample categories.
I need a detailed explanation step by step (R command script inluded) to perform this aim.
Please help me, i learned to use r three week ago