Data format question for triangle.plot package ade4

hello,

I am trying to develop a triangle plot but am having difficultly  
assigning
the row.names to the 3 columns in the data.frame

Here is what I've done,

attach(SoilVegHydro)

dim(SoilVegHydro)
1292    39

# now  take 3 variables from main data.frame for plotting

dat <- cbind.data.frame(TP, meanAnnualDepthAve, BulkDensity)  #   
These are
variables held in the data frame SoilVegHydro
Did that "dat" object have what you wanted? The function call did not  
make any reference to SoilVegHydro. What does str(dat) return? Oh,  
never mind, I now see you use attach.
row.names(dat) <- paste(row.names(SoilVegHydro$Physiogomy),
Generally row.names is used on a dataframe rather than on a column  
vector.

 > dat <- data.frame(1:3, LETTERS[1:3])
 > row.names(dat$X1)
 > row.names(dat)
[1] "1" "2" "3"
 > length(row.names(dat$X1))
[1] 0
rep(c(1,2,3),
rep(1292, 3)), sep =" ")  # following the syntax from the help
triangle.plot page

this is returned when the last line is submitted.

row.names(dat) <- paste(row.names(SoilVegHydro$Physiogomy),  
rep(c(1,2,3),
rep(1292,3)), sep="")
Error in `row.names<-.data.frame`(`*tmp*`, value = c("1", "1", "1",  
"1",  :
 invalid 'row.names' length

I'm not certain how to define the row.names .  If anyone can help I'd
appreciate it.

I'm using R 2.11.1 (2010-5-31) on Windows XP

Thanks
Steve

Steve Friedman Ph. D.
Spatial Statistical Analyst
Everglades and Dry Tortugas National Park
950 N Krome Ave (3rd Floor)
Homestead, Florida 33034

Steve_Friedman at nps.gov
Office (305) 224 - 4282
Fax     (305) 224 - 4147

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Data format question for triangle.plot package ade4

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