WWC: Weighing the Wisdom of the Crowd

globalVariables(c("FIPS", "acsagetable", "acsedutable", "age", "age_lambda", 
                  "age_od", "county", "data.x", "data.y", "edu_od", "education", 
                  "education_lambda", "geo_lambda", "geo_od", "geography",
                  "geoprob", "geototal", "geoweight", "no", "notother", "odds", 
                  "population", "prob", "race_lambda", "race_od", 
                  "raceethnicity", "region", "response", "sex", "sex_lambda", 
                  "sex_od", "sextotal", "state", "surveytotal", "value", 
                  "weight", "weight_best", "yes", "answer", "result", "stddev",
                  "se", "percent_error", "Raw", "Weighted"))