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categoria
2010 May 11
3
Advice needed on awkward tables
...elationship, and the numbers
in the feature field represent the respective columns in Table A, delimited
by semicolons. So in the example below, I need to collapse the data in Table
B into a table with nrow equivalent to the number of categories and ncol =
number of patients. The collapsing of each categoriy, will be based on a
Boolean OR, or the equivalent ANY in R (so long as 1 of the features is
true, the resulting outcome will be true)
data.table.a <-
matrix(data=round(runif(100)),nrow=10,ncol=10,dimnames=list(paste("Patient",1:10),paste("Feature",1:10)))
data.table.b <-...