Grothendieck warns that this last can possibly cause problems when using
R programs from other places. I ran into this problem once with reshape.
--- On Thu, 10/9/08, Michael Kubovy [EMAIL PROTECTED] wrote:
From: Michael Kubovy [EMAIL PROTECTED]
Subject: Re: [R] Turn factors to numeric
To: Charilaos
I am having some problems while trying to fit simple data.
I aggregated some data using:
data1 - aggregate(data1$T2, list=(SOA=data1$SOA), mean)
unfortunatly this coerces my variable SOA into a factor. Therefore when a
afterwards try to fit a simple equation to my variable T2 using a formula on
R-FAQ 7.10:
http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-do-I-convert-factors-
to-numeric_003f
On Oct 9, 2008, at 6:59 AM, joseph kambeitz wrote:
I am having some problems while trying to fit simple data.
I aggregated some data using:
data1 - aggregate(data1$T2, list=(SOA=data1$SOA),
Dear R-helpers,
The FAQ in question says:
It may happen that when reading numeric data into R (usually, when
reading in a file), they come in as factors. If f is such a factor
object, you can use
as.numeric(as.character(f))
to get the numbers back. More efficient, but harder to
4 matches
Mail list logo
