Update README.md

README.md

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-# rodenticide-rat-infection
+A repository for: 
+================
+
+Murray MH, Sánchez CA. in press. Urban rat exposure to anticoagulant rodenticides
+and zoonotic infection risk. Biology Letters.
+
+
+**This repository has 5 R scripts used for this analysis:** The first script
+(1_calculateAgeSMI.R) loads the data and calculates two new variables: age 
+(based on weight) and scaled mass index (SMI), a measure of body condition. 
+The second script (2_analysis.R) runs models to assess how variance in infection 
+status is associated with multiple predictor variables. The third script 
+(3_Figure2.R) generates Figure 2 of the manuscript. Figure 1 was generated 
+separately in QGIS. The other scripts contain libraries and functions necessary
+to run the rest of the code, and are sourced when needed.