request: explicit time variable for time series

[ivokwee]

It would be better to explicitly pass (or ask) a time variable for enabling time series analysis. Currently it detects automatically but it gives too many warnings/messages in the UI. Also if there is a time variable but the user is not interested in time series, it still performs it. I think it is better to let user select explicitly if they want time series and on which variable(s).

1. Introduce time.var in createPGX(). For example time.var="Days" .
2. In the wizard have a choice time.series is TRUE/FALSE which a chooser for time variables.
3. Not urgent: To allow multiple time variables we could rename the contrasts instead of "IA:group:A_vs_B" to "group*days:A_vs_B" and "group*dose:A_vs_B".

[zitoa]

"I think it is better to let user select explicitly if they want time series and on which variable(s)."
RE: I originally implemented exactly this approach: user had to select time-series analysis and variables. Glad to see you also like it now. I will do that.