Adding data.frames together

d1 <- data.frame(x=1, y=1)
d2 <- data.frame(x=1:2, y=1:2)
d3 <- data.frame(x=3, y=3)
rbind(d1,d2,d3)

do.call("rbind", list(d1,d2,d3))

do.call("rbind", eval(parse(text=paste(paste("list(",

From: John Sweval

I have a series of data frames that are identical structurally, i.e. -
made with the same code, but I need to add them together so that they
become one, longer, data frame, i.e. - each of the slot vectors are
increased in length by the length of the added data frame vectors.

So if I have df1 with a slot A so that length(df1$A) = 100 and I have
df2 with a slot A so that length(df2$A)=200 then I need a method to
create df3 its slot A is the df1$A plus df2$A such that 
length(df3$A) =
300.

It does not appear that if you use data.frame to join two 
data frames it
just adds the slots of both sources to the destination data frame and
that is not what I want.

In my finally solution, I need to do this with multiple 
data.frames that
slot-wise are identical, but each slot length is different 
between data
frames.

Seems like there should be an easy solution, but I just have not
stumbled across it in the documentation.

Thanks,
John C. Sweval
  Database Architect
  Illumigen Biosciences, Inc.
    Email: jsweval at illumigen.com
    Phone: 206-378-0400
    Fax: 206-378-0408


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