Ignacio Diaz-Emparanza a écrit : 1- Add a new command "rates" and a new item to the "Add" menu (for time series), which computes Y/Y(-1)-1. It's a very good idea. Some time ago I had to handle data from World Development Indicators (WB) and computed the growth rates over a period by script (and loops). It will be great if Gretl could do the same by a build-in command, using WB's method (log regression on time). By the way, how can I add a trend to a white noise ? I guess by "genr y = normal() + time" ???? And what about a seasonal trend ?
Best,
Artur
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Ignacio Diaz-Emparanza a écrit :
Some time ago I had to handle data from World Development Indicators (WB) and computed the growth rates over a period by script (and loops). It will be great if Gretl could do the same by a build-in command, using WB's method (log regression on time).
By the way, how can I add a trend to a white noise ? I guess by "genr y = normal() + time" ???? And what about a seasonal trend ?
Best,
Artur
It's a very good idea.1- Add a new command "rates" and a new item to the "Add" menu (for time series), which computes Y/Y(-1)-1.
Some time ago I had to handle data from World Development Indicators (WB) and computed the growth rates over a period by script (and loops). It will be great if Gretl could do the same by a build-in command, using WB's method (log regression on time).
By the way, how can I add a trend to a white noise ? I guess by "genr y = normal() + time" ???? And what about a seasonal trend ?
Best,
Artur
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