R help - Apr 2014 - Need help to convert data frame to transaction set.

Hi,

To convert coerce the data set to transaction data set I used the code

trans4 <- as(split(a[,"Cust_ID"], a[,"Parts"]),
"transactions")

but I am getting the following error-

Error in as(split(a[, "Cust_ID"], a[, "Parts"]),
"transactions") : nomethod
or default for coercing ?list? to ?transactions?



Then I tried first converting the data set to matrix structure using the
code

c_m<-as.matrix(c_df)
 c_m



then entered the following code


trans2 <- as(c_m, "transactions")

but got the following error

Error in as(c_m, "transactions") : no method or default for coercing
?matrix? to ?transactions?
Please let me know how to correct the problem.

Thanks
Sathish

Hi,

Without a reproducible example using ?dput() or the package name, it is a bit
difficult to comment.

Assuming that you used:
library(arules)
?data("AdultUCI")
AdultUCI$ID <- 1:nrow(AdultUCI)

lst1 <- split(AdultUCI[,"ID"],
AdultUCI[,"marital-status"])
?as(lst1, "transactions")
#transactions in sparse format with
# 7 transactions (rows) and
# 48842 items (columns)



A.K.


On Saturday, April 19, 2014 5:01 PM, Sathish Kumar <tellsathish at
gmail.com> wrote:
Hi,

To convert coerce the data set to transaction data set I used the code

trans4 <- as(split(a[,"Cust_ID"], a[,"Parts"]),
"transactions")

but I am getting the following error-

Error in as(split(a[, "Cust_ID"], a[, "Parts"]),
"transactions") : nomethod
or default for coercing ?list? to ?transactions?



Then I tried first converting the data set to matrix structure using the
code

c_m<-as.matrix(c_df)
c_m



then entered the following code


trans2 <- as(c_m, "transactions")

but got the following error

Error in as(c_m, "transactions") : no method or default for coercing
?matrix? to ?transactions?
Please let me know how to correct the problem.

Thanks
Sathish
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