discretization in R with arules package -

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i using arules package discretize continuous variables in data frame. using particular line

discretize(data1,categories = 3)

but giving me error

error in cut.default(x,k2) : k2 must numeric

i trying convert continuous variables "data1" data frame 3 bins discrete variables. appreciated...thanks in advance

this worked me :

data1.disc <- as.data.frame(lapply(data1,                                     function(x) discretize(x, categories=5)                                    )                            )

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