[R] lapply to multivariate function?

[Rui Barradas]

Hello,

Maybe you need apply, not lapply. It seems you want to apply() a 
function to the first dimension of your data.frame, something like

apply(dat, 1, fun)  #apply by rows


Hope this helps,

Rui Barradas

Em 01-09-2013 15:00, Ignacio Martinez escreveu:
> I have a Data Frame that contains, between other things, the following
> fields: userX, Time1, Time2, Time3. The number of observations is 2000.
>
> I have a function that has as inputs userX, Time1, Time2, Time3 and return
> a data frame with 1 observation and 19 variables.
>
> I want to apply that function to all the observations of the first data
> frame to make a new data frame with 2000 observations and 19 variables.
>
> I thought about using lapply, but if I understand correctly, it only takes
> one variable.
>
> Can somebody point me in the right direction?
>
> Thanks!
>
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