[R] Fwd: Reporting with down and across variables

Matthew Pettis matthew.pettis at gmail.com
Thu Sep 18 17:05:23 CEST 2008


[Reposting with changed example and font spec removed]
Hi,

I want to take the dataframe df generated below and reshape the data
with column names being w, x, y, and the different levels of z.  The
values under the different levels of z are the corresponding values of
r.  I've tried reshape and cast, and I can't seem to find the right
combination.  Any help is appreciated,

Matt
---------------------------------
   # Generate data
w <- c("a","b")
x <- c("c","d")
y <- c("e","f")
z <- c("g","h")
df <- expand.grid(w=w,x=x,y=y,z=z)
df$r <- rnorm(16,mean=0,sd=1)

-------------------------------------
Wanted output:

w   x   y   g      h
-   -   -   -      -
a   c   e   0.1    0.2
a   c   f   -0.4   0.32
a   d   e   ...    ....
...



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