function lm, get back the coefficient

Not quite, Gavin. You have to assign the value of unname back:
Yes; thought that would be a given. The point was to give a simple
example to show that `unname()` removes names/dimnames.

G
z <- structure(2, names="a")
unname(z)
[1] 2
z
a
2
zz <- unname(z)
zz
[1] 2
names(z) <- NULL
z
[1] 2

Cheers,
Bert

On Tue, Jul 26, 2011 at 1:18 PM, Gavin Simpson <gavin.simpson at ucl.ac.uk> wrote:
On Tue, 2011-07-26 at 16:43 +0100, Barry Rowlingson wrote:
On Tue, Jul 26, 2011 at 4:21 PM, ascoquel <ascoquel at yahoo.fr> wrote:
Hi,

I've done a linear fit on my data and I would like to get back the a (time)
coefficient ...

mod<-lm(res_sql2$Lx0x~0+time)
result<-data.frame()
result<-coef(mod)
print("result")
print(result)
[1] "result"
     time
0.02530191

But I would like just the value 0.02530191 ... I tried result$time but it
doesn't work ...
 It is 'just the value'. It happens to be in a named vector with a
length of 1. You can do anything to it that you want to do with any
other number. Try result * 2, or sqrt(result).

 If it really annoys you, try names(result)=NULL to get rid of the name.

Barry
`unname()` exists for this purpose:

foo <- 1
names(foo) <- "bar"
foo
bar
 1
unname(foo)
[1] 1

G
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function lm, get back the coefficient

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