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date_per
2012 Dec 17
0
User defined functions error - where is it ?
...a subset of full1 based on the criterion:
{ date_per = '2012-01-01'
date_per = as.POSIXct(date_per,tz='', "%Y-%m-%d")
per2012.sub = subset(full1, CUST_SINCE >= date_per) }
3) per.after.sub, which is a subset of full1 based on the criterion:
{ date_per1 = '2012-08-01'
date_per1 = as.POSIXct(date_per1,tz='',"%Y-%m-%d")
per.after.sub = subset(full1, CUST_SINCE >= date_per1) }
All the procedures works fine with the tables 'full1' and 'per2012.sub' but
it gives me the
error when using the ta...