Convert object label/attribute label coding.
Convert object label/attribute label coding to an object by attribute data frame.
categoryReshape(x)
x |
A matrix or data frame with at least two columns. |
categoryReshape attempts to convert the first two columns of its input into a data frame in which rows represent objects and columns attributes. For each object, a value of 1 indicates that the object has that attribute, and a value of 0 that it does not. In set membership terms, a 1 indicates that the object is a member of that set and a 0 that it is not.
A data frame (see Details).
Jim Lemon
ns<-sample(1:8,20,TRUE) objects<-0 for(i in 1:length(ns)) objects<-c(objects,rep(i,ns[i])) attributes<-"Z" for(i in 1:length(ns)) attributes<-c(attributes,sample(LETTERS[1:8],ns[i])) setdf<-data.frame(objects[-1],attributes[-1]) categoryReshape(setdf)
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