| Athens_approved_ts | Time series of Approved Expenditure Budget Phase of Municipality of Athens |
| Athens_draft_ts | Time series of Draft Expenditure Budget Phase of Municipality of Athens |
| Athens_executed_ts | Time series of Executed Expenditure Budget Phase of Municipality of Athens |
| Athens_reserved_ts | Time series of Reserved Expenditure Budget Phase of Municipality of Athens |
| Athens_revised_ts | Time series of Revised Expenditure Budget Phase of Municipality of Athens |
| open_spending.ts | Read and analyze univariate time series data from Open Spending API |
| ts.acf | Extract the ACF and PACF parameters of time series and their model residuals |
| ts.analysis | Time series analysis results for OBEU Time series |
| ts.forecast | Time series forecast results of OBEU Time Series |
| ts.non.seas.decomp | Non seasonal decomposition |
| ts.non.seas.model | Model fit of non seasonal time series |
| ts.seasonal.decomp | Decomposition of seasonal time series |
| ts.seasonal.model | Model fit of seasonal time series |
| ts.stationary.test | Stationarity testing |