In: Statistics and Probability
fit an ARIMA model with the following data that correspond to the sugar price index proposed by FAO. Data goes from January 2010 to December 2016
Use R or SAS
Apply the stationary and unit root tests.
Show the R or SAS code
| DATE | valor | 
| ene-10 | 375.5 | 
| feb-10 | 360.8 | 
| mar-10 | 264.8 | 
| abr-10 | 233.4 | 
| may-10 | 215.7 | 
| jun-10 | 224.9 | 
| jul-10 | 247.4 | 
| ago-10 | 262.7 | 
| sep-10 | 318.1 | 
| oct-10 | 349.3 | 
| nov-10 | 373.4 | 
| dic-10 | 398.4 | 
| ene-11 | 420.2 | 
| feb-11 | 418.2 | 
| mar-11 | 372.3 | 
| abr-11 | 345.7 | 
| may-11 | 312.2 | 
| jun-11 | 357.7 | 
| jul-11 | 400.4 | 
| ago-11 | 393.7 | 
| sep-11 | 379 | 
| oct-11 | 361.2 | 
| nov-11 | 339.9 | 
| dic-11 | 326.9 | 
| ene-12 | 334.3 | 
| feb-12 | 342.3 | 
| mar-12 | 341.9 | 
| abr-12 | 324 | 
| may-12 | 294.6 | 
| jun-12 | 290.4 | 
| jul-12 | 324.3 | 
| ago-12 | 296.2 | 
| sep-12 | 283.7 | 
| oct-12 | 288.2 | 
| nov-12 | 274.5 | 
| dic-12 | 274 | 
| ene-13 | 267.8 | 
| feb-13 | 259.2 | 
| mar-13 | 262 | 
| abr-13 | 252.6 | 
| may-13 | 250.1 | 
| jun-13 | 242.6 | 
| jul-13 | 239 | 
| ago-13 | 241.7 | 
| sep-13 | 246.5 | 
| oct-13 | 264.8 | 
| nov-13 | 250.6 | 
| dic-13 | 234.9 | 
| ene-14 | 221.7 | 
| feb-14 | 235.4 | 
| mar-14 | 254 | 
| abr-14 | 249.9 | 
| may-14 | 259.3 | 
| jun-14 | 258 | 
| jul-14 | 259.1 | 
| ago-14 | 244.3 | 
| sep-14 | 228.1 | 
| oct-14 | 237.6 | 
| nov-14 | 229.7 | 
| dic-14 | 217.5 | 
| ene-15 | 217.7 | 
| feb-15 | 207.1 | 
| mar-15 | 187.9 | 
| abr-15 | 185.5 | 
| may-15 | 189.3 | 
| jun-15 | 176.8 | 
| jul-15 | 181.2 | 
| ago-15 | 163.2 | 
| sep-15 | 168.4 | 
| oct-15 | 197.4 | 
| nov-15 | 206.5 | 
| dic-15 | 207.8 | 
| ene-16 | 199.4 | 
| feb-16 | 187.1 | 
| mar-16 | 219.1 | 
| abr-16 | 215.3 | 
| may-16 | 240.4 | 
| jun-16 | 276 | 
| jul-16 | 278.7 | 
| ago-16 | 285.6 | 
| sep-16 | 304.8 | 
| oct-16 | 315.3 | 
| nov-16 | 287.1 | 
| dic-16 | 262.6 |