search for: medyear

...ession using a number of studies. Below is the syntax, error message & data. Any advice regarding what I am doing wrong or solutions are appreciated, regards Bob Green > logreg <- read.csv("c:\\logregtest.csv",header=T) > attach(logreg) > names(logreg) [1] "medyear" "where" "who" "dxbroad" "firstep" "standard" [7] "age" "sex" "successes" "failures" > model <- glm(cbind(successes, failures) ~medyear + age + sex + where + who + d...

...ts in a logistic regression. 1. It looks like the first category is the reference category? In the following syntax 'where' has 4 levels, how can I make the reference category the third category? model<- glm(cbind(sucesses, failures) ~ where + who + firstep + dxnarrow + age + sex + medyear, family = binomial, data=life.use) model 2. Is it possible to round results to 4 decimal points? If so, what syntax is required? Any assistance is appreciated, Bob Green

...quired to the data format or is modification of the usual code required? 2. what is the best R package for performing logistic regression? Any assistance is much appreciated regards Bob Green In SPSS, each study was included I weighted the , though am unsure how I would format the data medyear where who dxbroad firstep standard age sex positive negative 89 3 2 1 0 0 31.5 71 28 117.00 98 2 2 1 0 1 48.0 62 15 72.00 98 4 1 1 0 0 45.2 61 42 57.00 89 3 0 1 0 1 28.7 63 19 48.00 99 2 2 1 0 1 34.7 73 27 73.00 88 3 0 1 0 1 30.6 58 26 57.00 94 1 1 1 0 1 36.3 81 70 124.00 96 3 1 1 0 1 40.0 57 27 40...