Thank you dear Rohit.
When we use time series data for forecasting or prediction a variable, we have only one observation in one special year or month or day.
Because of data limitation, I use Panel data.TO prediction CO2 emission In Iran, I had only 31 observation. I decide to collection CO2 emission data from all provinces of Iran in 15 years. So I have 28 observation for each year, so I have 420 observation.
Is there any special codes to import this types of data(panel data) in wolfram mathematica?