Hi,
I am trying to subset a dataset based on a filter defined by a user...
I prompt the user for input.. resulting in a string logical expression
("X1 < 3").
I have tried using subset, but it is looking for a logical expression, not
a character string.
I keep getting the error: 'subset' must evaluate to logical.
Example:
x <- data.frame(matrix(1:15, nrow=5, ncol=3))
filter = "X1 < 3"
subset(x, filter)
Any ideas??
Thanks much,
Tracey
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