Creating a new column with constant value in .Xdf file using rxDataStep

Question

Could any one tell me how to create a new column having constant value in .Xdf file without taking data into dataframe.

I have a date type global variable named mod_run_date having value as "2014-05-01" . I want to create a new column CV_PROCESSED_AS_OF_DT in "/poc/revor/data/selective_acceptance_inter.xdf" having value as "2014-05-01" for all rows.

Have tried below code for the same:

rxDataStep(inData = "/poc/revor/data/selective_acceptance_inter.xdf",outFile = "/poc/revor/data/selective_acceptance.xdf",
transform = list(CV_PROCESSED_AS_OF_DT = mod_run_date),transformObjects = list(mod_run_date = mod_run_date),
overwrite = TRUE)

But getting error that

argument 3 matches multiple formal arguments

Could anyone point out the mistake I am doing in the code or any other approach to obtain the same.

Thanks in advance for your help...:)

Cheers,

Amit

Answer 1

问题是我们还没有完全指定正确的论点。您需要transforms，而不是transform。您的错误暗示了transform的问题，即可能是transforms，transformFunc或transformObjects。