Hi all,
I've been having trouble with something that seems like it should be
fairly straight forward. Any help at all from more experienced users is
appreciated!
I'd like to write a function that uses a column name as an argument.
However, I run into problems when I try to reference this column within
the function.
For example,
findCutoff <- function(tableName, columnName) {
temporaryTable <- subset(tableName, select = c(V1, V4,
columnName))
x <- length(tableName$columnName [tableName$columnName >
6] )
...etc.
}
I know a couple of ways to reference a column:
1. tableName$columnName
2. tableName[["columnName"]]
I tried turning the function arguments into a string like
"tableName$columnName" to use within my function, but unfortunately that
didn't work. With the second method I run into problems if I want to
compute something like x in the example function above.
Any ideas, suggestions to try?
Thanks in advance for any responses!
YunHui Lisa Lin
Intern, Customer Intelligence & Web Analytics
Moody's Corporation
yunhui....@moodys.com <mailto:heather.andr...@moodys.com>
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