Hi,
I'm trying to use the R interpreter in sage for a script I'm running that makes use of both sage and R.
I'm coming across a problem in the sagemath R interpreter where I am trying to perform the following (R script):
library(forecast) data <- AirPassengers data <- log(data) ARIMA <- arima(data, order = c(1, 0, 1), list(order = c(12,0, 12), period = 1)) fc<-forecast(ARIMA,h=24) fc$mean<-exp(fc$mean) fc$upper<-exp(fc$upper) fc$lower<-exp(fc$lower) fc$x<-exp(fc$x)
Namely, I am trying to "unlog" an R forecast and then plot it. I'm finding I cannot perform the last step in sage. I don't think the "$" operator works in sage, so I am using the other reference method fc['"x"'] = r.exp(fc['"x"']) but I get an error saying this value is not able to be assigned to. Anyone know how to get around this, or what the equivalent to the "$" operator would be in the sage r interpreter?