r - converting a dataframe to a 2 column dataframe based on vaues -


i trying convert multi-column dataframe 2 column dataframe. each row person (based on id in first col) multiple attributes. how can list each person , attribute in 2 columns?

example:

 temp<-data.frame(v1 = c(1,2,3),v2 = c(4,5,6))  row.names(temp)<-c("person1","person2","person3")  temp          v1 v2  person1  1  4  person2  2  5  person3  3  6  res<-data.frame(person=c("person1","person1","person2","person2","person3",          "person3"),val= c(1,4,2,5,3,6))  res      person val  1 person1   1  2 person1   4  3 person2   2  4 person2   5  5 person3   3  6 person3   6

here's comment converted answer per request

library(reshape2)  temp$id <- rownames(temp)  melt(temp, "id")

or simpler version @akrun

melt(as.matrix(temp))

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