I'm studying time series and need to use hw() function. I cannot make it working even on a simple code based on the co2 dataset :
library(forecast)
co2_train=window(co2,start=c(1959,1),end=c(1989,12))
co2_test=window(co2,start=c(1990,1),end=c(1997,12))
h=hw(co2_train,seasonal='additive',damped=FALSE,h=96) #code stops to be executed here
accuracy(h)
When I load the R Markdown, the first time I try to run it I get the following error :
Error in ets(x, "AAA", alpha = alpha, beta = beta, gamma = gamma, phi = phi, : No model able to be fitted
Then if I re-run the code, RStudio is compiling indefinitively and I need to restart it to work again. All other models are working (ARIMA, Neural networks forecast...). Only this function makes trouble.
I tried to create a new file, a new project, restart R Studio, reinstall R Studio... with no luck.
Any help on this would be very appreciated.
Thanks.