[R] problem subsetting data frame with variable instead of constant

Hello, I've encountered a very weird issue with the method subset(), or maybe this is something I don't know about said method that when you're subsetting based on the columns of a data frame you can only use constants (0.1, 2.3, 2.2) instead of variables? Here's a look at my data frame called

Re: [R] problem subsetting data frame with variable instead of constant

On Fri, Feb 10, 2012 at 08:15:39AM -0800, vaneet wrote: Hello, I've encountered a very weird issue with the method subset(), or maybe this is something I don't know about said method that when you're subsetting based on the columns of a data frame you can only use constants (0.1, 2.3, 2.2)

Re: [R] problem subsetting data frame with variable instead of constant

This is likely a representation issue, as in R FAQ 7.31. ?== suggests that using identical and all.equal is a better strategy: x1 - 0.5 - 0.3 x2 - 0.3 - 0.1 x1 == x2 # FALSE on most machines identical(all.equal(x1, x2), TRUE) # TRUE everywhere Sarah

Re: [R] problem subsetting data frame with variable instead of constant

Thanks guys, both those solutions work. I really appreciate the help! -- View this message in context: http://r.789695.n4.nabble.com/problem-subsetting-data-frame-with-variable-instead-of-constant-tp4376759p4376826.html Sent from the R help mailing list archive at Nabble.com.