Message-ID: <1296445786356-3248066.post@n4.nabble.com>
Date: 2011-01-31T03:49:46Z
From: Ramya
Subject: Finding a Diff within a Dataframe columns
In-Reply-To: <AANLkTi=WuOc+yOutH5dJVa7CXZR9jjy6xR=+1qaHkgw+@mail.gmail.com>
Hi jholtman,
Thanks a ton it just worked. if you dont mind can you explain the code it a
little
sapply(seq(from = 1, by = 2, length = ncol(x) %/% 2), function(a){
+ x[[a]] - x[[a + 1]]
+ })
wat is the purpose of double percent sign and is the sapply the function we
generally use for the Dataframe?
Thanks
Ramya
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