[R] Convert data set to data frame

[Jim Lemon]

On Mon, 2008-07-14 at 14:40 -0700, Willa Wei wrote:
> .... Now, I want to have a
> data frame looks like shown below so that I can save it into my
> database:
>  
>      Level       mean     median        var         sd    valid.n 
>               2       6.11       1.29       2885      53.72   8.35e+04 
>               5      32.72       2.74  2.343e+05      484.1       2699 
>               9      395.2       4.06  1.023e+06       1011         26 
>              10       2086      49.44  1.201e+07       3465         10 
>              11      79.84      -2.82  3.652e+05      604.3        491 
>              13  2.592e+04      -3.04  3.364e+09    5.8e+04          5 
>              14      226.6      51.69  7.583e+05      870.8        118 
>              17      273.2      56.72  4.857e+05      696.9         90 
>              19       1611       1267  2.393e+06       1547         58 
>              20      620.9      140.8  1.232e+06       1110         77 
>              21       3608      459.3  3.843e+07       6199         15 
> 
Hi Willa,
If you only have one level of breakdown, the result will be a matrix,
but you will have to remove the class:

my.new.breakdown<-as.data.frame(unclass(t(my.old.breakdown)))

For multilevel breakdowns, you will have to create a function like:

brkdn2tdf<-function(x) return(as.data.frame(unclass(t(x))))

and then use rapply to step through the list.

Jim