Column Variable attributes Tag Individual number or ID for each plant Block Spatial Block of the experiment Treatment Control treatment of Simonsen and Stinchcombe, indicating that plants are grown w/o interspecific competitors line_num Indicator variable denoting the inbred line of an individual FT flowering time, in days Size1 Mid-season size estimate, in leaves Size2 Final size estimate, in days Relfit Relative fitness, estimated as absolute seed number divided by mean seed number Notes: Rows of data indicate individuals, columns of data indicate variables FT, Size1, and Size2 have been standardized to have a mean of zero. Statistical code: Statistical code for producing the analyses in the paper are in the Supplemental Material Contact: John Stinchcombe