R code for seroprevalence of unfed herds (fig 3) from Winter feeding of elk in the Greater Yellowstone Ecosystem and its effects on disease dynamics.

Reads in serology data from 3 unfed elk populations and generates a plot illustrating brucellosis prevalence, sample sizes, and trends over time.

读取来自3个未投喂麋鹿种群的血清学数据，并生成一幅可视化图表，用以展示布鲁氏菌病（brucellosis）的患病率、样本量及随时间变化的趋势。