Thank you Ulrich!
At 12:39 AM 3/17/2006, you wrote:
Michael McCulloch wrote:
> I have data with the following structure:
>
> list id rec med afev wheeze cough date agev
> +---------------------------------------------------+
>
> | id dset rec med afev wheeze cough |
> |---------------------------------------------------|
> | 2 b 1 0 -9 0 0 |
> | 2 b 2 1 -9 0 0 |
> | 2 a 1 1 1.70 0 0 |
> | 2 a 2 0 1.80 0 0 |
> | 6 b 1 1 -9 0 1 |
> | 6 b 2 1 -9 0 0 |
> | 6 a 1 0 2.08 0 1 |
> | 6 a 2 0 1.85 0 0 |
>
> +---------------------------------------------------+
>
> I wish to reorganize the data so that there is one row for each ID, with
> subsets for dset (a or b) and rec (1 or 2) for each of the variables: med,
> afev, wheeze, cough.
>
> My goal is to have:
> id med(a1) med(b1) med(a2) med(b2) afev(a1) afev(b1)
> afev(a2) afev(b2)
> 2 1 0 0 1 1.70
> -9 1.80 -9
> 6 0 1 0 1 2.08
> -9 1.85 -9
>
> I have tried using the reshape command but each subset does not have unique
> values of the variables afev, wheeze, and cough.
> I have tried using the collapse command, but I do not want to create
> summary statistics.
> I have tried using the contract command, but I do not want to create
> frequency counts.
> Any assistance would be greatly appreciated.
Do you mean
. egen group = group(dset rec)
. reshape wide med afev, i(id) j(group)
Uli
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Best wishes,
Michael
____________________________________
Michael McCulloch
Pine Street Clinic
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