I think you are going to need to explain how "Duration"
is calculated. The numerical example is not
clear to me.
Nick
[email protected]
Albert Newton
> I get stuck in coding a during variable. The data is like:
>
> hhid weekshoppingday triptype switch switchtype
> Duration
> 1871877 954 7 1 0 0 0
> 1871877 955 7 2 1 2 1
> 1871877 956 3 1 1 4 1
> 1871877 957 6 0 1 1 1
> 1871877 958 7 1 1 6 3
> 1871877 959 7 1 0 0 0
> 1871877 960 7 1 0 0 0
> 1871877 961 7 0 1 1 1
> 1871877 962 7 2 1 5 1
> 1871877 963 4 1 1 4 3
> 1871877 964 2 1 0 0 0
> 1871877 964 7 1 0 0 0
>
> I just wanto count how long the customer stay in the switched shopping
> type. Could any one give some suggestion of how to constuct the
> variable "Duration"?
> The one above is make manually.
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