[R] Count number of different patterns (Polytomous variable)

[Dimitris Rizopoulos]

try this:

DF <- data.frame(V1 = c(0,1,1), V2 = c(3,2,2), V2 = c(1,0,0))
DF
nrow(unique(DF))


I hope it helps.

Best,
Dimitris


Biedermann, Jürgen wrote:
> Hi there,
> 
> Does anyone know a method to calculate the number of different patterns 
> in a given data frame. The variables are of polytomous type and not 
> binary (for the latter i found a package called "countpattern" which 
> unfortunately only functions for binary variables).
> 
> V1   V2   V3
> 0   3   1
> 1   2   0
> 1   2   0
> 
> So, in this case, i would like to get "2" as output.
> 
> Thanks in advance
> Jürgen
> 
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-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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