| cdf | Get Auxiliary Matrix | 
| celec | Consumption of electricity in Spain | 
| descomponer | Time series decomposition | 
| estimardf | Prediction whit Regression in domain frequency | 
| FFF | Regression in Fourier Flexible Form | 
| gdescomponer | Plotting the trend and seasonal | 
| gdf | Get Frequency Data | 
| gdt | Get Time Data | 
| gperiodograma | Plotting method for specturm | 
| gtd | Plotting method for specturm | 
| ipi | Indice de Produccion Industrial de Cantabria | 
| MW | Get Frequency Data | 
| periodograma | Periodogram | 
| PIB | GDP Volume Index in Spain | 
| predictFFF | Prediction whit Regression in FFF | 
| predictrdf | Prediction whit Regression in domain frequency | 
| rdf | Regression in domain frequency | 
| td | Cumulative periodogram test |