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 <[EMAIL PROTECTED]> wrote: > > What am I missing here? > > Cannot you just create the table from the data.frame > and apply prop.table()to it? > > --- Farrel Buchinsky <[EMAIL PROTECTED]> 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 > > > > Be smarter than spam. See how smart SpamGuard is at giving junk email > the boot with the All-new Yahoo! Mail at > http://mrd.mail.yahoo.com/try_beta?.intl=ca > > -- Farrel Buchinsky GrandCentral Tel: (412) 567-7870 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
