search for: ralationship

...to calculate the spectrum function in two time series. But when plot a single serie, the labels in axes x is in the range 0.1 to 0.6 (frequency), but when calculate de spectrum with ts.union function, the labels x is in the range 1 to 6. I not understand why change the labels, and not know that is ralationship. Samebody can hel me in this analysis..... Thank for all fdo Fernando Espindola R. Division Investigacion Pesquera Instituto de Fomento Pesquero Blanco 839 Valparaiso - CHILE fono: 32 - 322442 fernando.espindola@ifop.cl [[alternative HTML version deleted]]

Hi I have often the problem that rails outputs an error because of requests from an empty database. I will check, before showing features on the page, if a flag is set in the database. The problem is, that the DB is not filled, if you dont add the flag before. The result if i am doing the request is a nil object. For example: