[R] Attribute Combinations

[John Kane]

One possible way
library(tidyr)

dat1  <-  structure(list(V1 = c("A", "A", "A", "A", "A", "A", "A", "A",
"A", "A"), V2 = c("A", "B", "A", "A", "A", "B", "C", "C", "B",
"C"), V3 = c("B", "C", "D", "B", "B", "C", "B", "B", "C", "C"
)), class = "data.frame", row.names = c(NA, -10L))

dat2  <-  unite(dat1, att, V1, V2, V3, sep = ",")

prop.table(table(dat2$att))

A,A,B A,A,D A,B,C A,C,B A,C,C
  0.3   0.1   0.3   0.2   0.1

On Thu, 21 May 2020 at 13:22, Jeff Reichman <reichmanj using sbcglobal.net> wrote:

> R-help forum
>
>
>
> Looking for a function or some guidance for obtaining the percentage of
> attribute combinations, for example
>
>
>
> V1           V2           V3
>
> A             A             B
>
> A             B             C
>
> A             A             D
>
> A             A             B
>
> A             A             B
>
> A             B             C
>
> A             C             B
>
> A             C             B
>
> A             B             C
>
> A             C             C
>
>
>
> Results
>
> A,A,B     0.30
>
> A,B,C     0.30
>
> A,A,D    0.10
>
> A,C,B     0.20 etc
>
>
>
> Sincerely
>
>
>
> Jeff Reichman
>
> (314) 457-1966
>
>
>
>
>         [[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>


-- 
John Kane
Kingston ON Canada

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