[R] Printing data.frame data: alternatives to print?

[Jan van der Laan]

Matt,

Below are three (of the probably many more) possible ways of doing this:

aggregate(1:nrow(df), df, length)

ftable(1 ~ f1 + f2, data=df)

library(plyr)
ddply(df, .(f1,f2), nrow)

Regards,
Jan



On 29-10-2010 15:53, Matthew Pettis wrote:
> Hi,
>
> I have a data frame with two factors (well, more, but 2 for simple
> consideration), and I want to display the different combinations of
> the them that actually occur in the data.  In reality, there are too
> many of them to do to do a 'table' call and have one col vertical and
> one col horizontal (I don't want any of the factors listed
> horizontally).  Before I try to write a function to do this for me, I
> was wondering if there were alternate printing styles for data that
> already exist, and if someone could direct me to them?  Inclded is a
> sample code and 2 possibilities (others welcome for consideration) of
> how I want to display some data.
>
> Thanks,
> Matt
>
> -----
>
> df<- data.frame(
>      f1=rep(c("Maj I", "Maj II", "Maj III"), each=3),
>      f2=c("Minor A", "Minor A", "Minor A", "Minor A", "Minor B", "Minor
> B", "Minor B", "Minor C", "Minor C")
> )
>
> -----
>
> What I want printed is something like:
>
> -------------------
>        f1         f2
> Maj I       Minor A
>
> Maj II      Minor A
>              Minor B
>
> Maj III     Minor B
>              Minor C
> -------------------
>
> or
>
> -------------------
>        f1         f2
> Maj I       Minor A
>
> Maj II      Minor A
> Maj II      Minor B
>
> Maj III     Minor B
> Maj III     Minor C
>
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