Hello Halfdan,

The "Compute an expression on every row" tool supports basic Python language constructs. There is extensive on-line documentation describing these, perhaps a good one to start with is:

http://docs.python.org/library/stdtypes.html

Greg Von Kuster Galaxy Development Team

Halfdan Rydbeck wrote:

What are the possible computations and what are the commands for “Compute http://main.g2.bx.psu.edu/tool_runner?tool_id=Add_a_column1 an expression on every row”? Thanks!

Halfdan Rydbeck

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