Salmonella Data Preprocessing for PCSF Algorithm

This post describes data preprocessing in Salmonella project for Prize-Collecting Steiner Forest Problem (PCSF) algorithm. Salmonella data taken from Table S6 in Phosphoproteomic Analysis of Salmonella-Infected Cells Identifies Key Kinase Regulators and SopB-Dependent Host Phosphorylation Events by Rogers, LD et al. has been converted to tab delimited TXT file from its original XLS file for easy reading in Python. The data should be separated into time points files (2, 5, 10 and 20 minutes) each of which will contain corresponding phophoproteins and their fold changes.