Hello,

Try

do.call(data.frame, by.list)

Hope this helps,

Rui Barradas
Em 09-10-2012 17:53, Jesus Frias escreveu:
> Dear R-helpers,
>
>   
>
> I've got a summary of results from a by() call that I am making with a list
> of more than two of factors not very different from the example in the by()
> help page
>
>   
>
> require(stats)
>
> by(warpbreaks[, 1],   warpbreaks[, -1],       summary)
>
>   
>
> The result of the command gives a list of the form
>
>   
>
> wool: A
> tension: L
>     Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
>    25.00   26.00   51.00   44.56   54.00   70.00
> ---------------------------------------------------
> wool: B
> tension: L
>     Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
>    14.00   20.00   29.00   28.22   31.00   44.00
> ---------------------------------------------------
>
> .... And so on.
>
>
>
>
>
> I would like to convert this result in to a flat data.frame with variable
> names:
>
>
>
> Wool, Tension, Min, 1stQ, Median, Mean, 3rdQ, Max
>
> A, L , 25.00   26.00   51.00   44.56   54.00   70.00
> B,  L, 14.00   20.00   29.00   28.22   31.00   44.00
>
> ....
>
>
>
>
>
> Although I've tried the argument "simplify=T" I haven't been able to get
> this converted.
>
>
>
> Is there a simple way to achieve this?
>
>
>
> Thanks in advance!
>
>
>
> Regards,
>
>
>
> Jesus
>
>
>
> Jesús María Frías Celayeta, PhD
>
> Ceann Cúntóir, Scoil Eolaíocht an Bhia agus Sláinte an Chomhshaoil
>
> Assistant Head, School of Food Science and Environmental Health,
>
> Coláiste Eolaíochtaí agus Sláinte/ College of Sciences and Health,
>
> Institiúid Teicneolaíochta Átha Cliath/ Dublin Institute of Technology,
>
> Sráid Chathal Brugha, Baile Átha Cliath 1, Éire/Cathal Brugha Street, Dublin
> 1, Ireland
>
> F: +353-1-4024459
>
> E:  <mailto:james.cur...@dit.ie> jesus.fr...@dit.ie
>
> W: http://fseh.dit.ie/o4/StaffListing/JesusFrias.html
>
>
>
>
>
>
>
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> Ríomhphost de chuid Seirbhísí Faisnéise, ITBÁC agus meastar í a bheith slán.  
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