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master_reduced
2011 Jan 21
3
data and parameters
(1) I have a master data frame that reads
ClientID |date |value
(2) I also have a control data frame that reads
Client ID| Min date| Max date| control parameters
The control data set may not have all client IDs .
I want to use the control data frame on the master data frame to
remove client IDS that don't exist in the control data set and for
those that do, remove dates outside the