Hello, I'd like to share a new tool for Galaxy: A Column Normalizer - Takes a tab-delimiter file with numeric values, and normalizes them. The tool is useful if you need to compare ratios between files of different values. Binaries + source + xml are available here: http://hannonlab.cshl.edu/column_normalizer/ Although you can normalize data manually in Galaxy (by using group + compute tools), it's hard to normalize data inside a workflow - which is what this tool is for. This tool also provide finer control over the output format (scientific or decimal-point notations). The tool is free for use. Comments are welcomed, Gordon.