How do you create a table from a data frame? I tried as.table(
name.of.data.frame) but it bombed out.
I will include the exact error message in my next posting. If I recall
correctly, it said that the data.frame could not be coerced to a table.


On 10/2/07, John Kane <jrkrideau@yahoo.ca> wrote:
>
> What am I missing here?
>
> Cannot you just create the table from the data.frame
> and apply prop.table()to it?
>
> --- Farrel Buchinsky <fjbuch@gmail.com> wrote:
>
> > When one has raw data it is easy to create a table
> > of one variable against
> > another and then calculate proportions
> > For example
> > a.nice.table<-table(a,b)
> > prop.table(a.nice.table,1)
> >
> > However, I looked at several papers and created a
> > data frame of the
> > aggregate data. That means I acually created a table
> > except it is a data
> > frame. The first column lists the name of the first
> > author and the year.
> > I cannot find how to convert the data frame to a
> > table so I can use great
> > functions such as prop.table and margin.table.
> >
> > Alas I tried, rowSums but it provides lousy output
> > without listing the names
> > of th papers.
> > I have thought of going through the reshape package
> > but I suspect that there
> > is an easier way to convert a data frame to a table.
> > Is there?
> >
> > --
> > Farrel Buchinsky
>
>
>
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>


-- 
Farrel Buchinsky
GrandCentral Tel: (412) 567-7870

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