New Post: Unable to load data

a <- 10
b <- 20
c <- 30
save(a,b,c,file="abc.rda")

            REngine.SetEnvironmentVariables();
            REngine engine = REngine.GetInstance();

            string wdPath = "\"C:/Users/Me/Documents/\"";
            engine.Evaluate("setwd(" + wdPath + ")");
            engine.Evaluate("source('abc.rda')");
            engine.Evaluate("b");
            engine.Dispose();