[Reposting with changed example]
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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