[R] info() function?

[Henrik Bengtsson]

>library(R.oo)
>ll()
         member data.class dimension object.size
1             a    numeric      1000        4028
2        author  character         1         112
3           exp    numeric         1          36
4  last.warning       list         2         488
5        object   function      NULL         864
6           row  character         1          72
7     USArrests data.frame   c(50,4)        4076
8      VADeaths     matrix    c(5,4)         824
9         value  character         1          72

with NA counts:
>naCount <- function(x, ...) ifelse(is.vector(x), sum(is.na(x)), NA)
>properties <- c("data.class", "dimension", "object.size", "naCount")
ll(properties=properties)
         member data.class dimension object.size
1             a    numeric      1000        4028
2        author  character         1         112
3           exp    numeric         1          36
4  last.warning       list         2         488
5       naCount   function      NULL         864
6        object   function      NULL         864
7    properties  character         4         212
8           row  character         1          72
9     USArrests data.frame   c(50,4)        4076
10     VADeaths     matrix    c(5,4)         824
11        value  character         1          72

FYI: In next version of R.oo, there will probably be some kind of
option to set the default 'properties' argument so that this must not
be given explicitly by default.

Cheers

Henrik

On 3/8/06, Robert Lundqvist <Robert.Lundqvist at ltu.se> wrote:
> I would like to have some function for getting an overview of the
> variables in a worksheet. Class, dimesions, length, number of missing
> values,... Guess it wouldn't be that hard to set up such a function, but I
> guess there are others who have made it already. Or is it already a
> standard feature in the base package? Any suggestions?
>
> Robert
>
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--
Henrik Bengtsson
Mobile: +46 708 909208 (+1h UTC)