Data accompanying Thom & Dytham 2012, Female choosiness leads to the evolution of individually distinctive males. Published in Evolution. Four tables of data are archived. These correspond to: STable1.csv: the basic model, with variation in female discrimination rate only. STable2.csv: the phenotype variation model, identical to the above but with females always underestimating male quality by up to 20%. STable3.csv: the variable encounter rate model, where female discrimination rate is held at 10% but encounter rate (number of males subsampled) varies. STable4.csv: the population size model, in which discrimination rate is held at 10% and encounter rate is held at 10. Population size varies from 1,000 to 100,000. Each table contains the output from 40 model replicates. Parameters are measured every 200 model time steps (approximately equivalent to "years"). Columns are: 1. encounter: the number of individuals females encounter, and choose among, when seeking a mate. On average, half will be female and half male. In most realisations, this is held constant at 10. 2. rep: replicate number, from 1:40. 3. timestep: model time step, from 0 to 50,000 in 200 timestep intervals. 4. actualpop: actual population size at measured timestep. Population size was regulated by density dependence, so there is some fluctuation around the target population size. 5. targetpop: the equilibrium population size. In most realisations, this is held constant at 10,000. 6. signal: the total number of unique signal variants in the population. Calculated across the three unlinked signalling loci. In all models a maximum of 1000 variants is possible with four alleles at each of three loci, assuming that at a single locus AB = BA. 7. nonsignal: the total number of unique neutral (nonsignalling) variants in the population. Calculated as for 6. These are invisible to selection and evolve under neutral processes only. 8. meanqual: the mean male quality in the population at the measured timestep. 9. varqual: the variance in male quality in the population at the measured timestep. 10. discrim: female discrimination rate. The proportion of encounters in which females attempt to discriminate and mate with the highest quality male. In most realisations this is the manipulated parameter of interest, and it is varied between 0 and 1. 11. varoffm: variance in the number of offspring produced by males in the present timestep. 12. varofff: variance in the number of offspring produced by females in the present timestep.