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merge_1
2011 Jan 07
0
Extracting user specified variables from data frame to use as function arguments
...tats of response variable(s)
using the input variables as the 'by' variables.
The variables specified as argument for the function are taken to be
character strings and I have not been able to use these to extract the
corresponding variables.
As an example, suppose I have an argument 'merge_by' which is used to
specify the variables used to merge two datasets. Typically, the input is
"an period" (with the double quotes) but could be more or less variables
than that.
How do I input the user specified variables and use them for tasks like
merging, transposing etc.?
A simila...