MJ == Michael Just [EMAIL PROTECTED]
on Sat, 18 Oct 2008 17:26:02 -0400 writes:
MJ Henrique,
MJ This code below from a R-help helper worked.
dat -data.frame(f)
dat2-dat[dat$d0,]
dat.lm -lm(c~d, data=dat2)
But Henrique's advice, of using 'subset= d 0' was really
Hello,
I was wondering if there was a way to only select cases my from data
frame that contained a negative value?
c-c(1,2,3,4,5,6,7,8,9,10)
d- c(-1,2,-3,-4,5,6,-7,8,-9,10)
f - cbind(c,d)
dat -data.frame(f)
dat.lm -lm(c~d)
If I wanted to only use the rows that had a negative value in column
Try this:
dat.lm -lm(c~d, subset=d 0)
On Sat, Oct 18, 2008 at 7:03 PM, Michael Just [EMAIL PROTECTED] wrote:
Hello,
I was wondering if there was a way to only select cases my from data
frame that contained a negative value?
c-c(1,2,3,4,5,6,7,8,9,10)
d- c(-1,2,-3,-4,5,6,-7,8,-9,10)
f -
Henrique,
Thanks for the rapid response. I tried the following to no avail:
dat.lm -lm(c~d, dat=dat, subset= d 0)
Error in eval(expr, envir, enclos) : invalid 'envir' argument
dat.lm -lm(c~d, dat=dat, subset= (d 0))
Error in eval(expr, envir, enclos) : invalid 'envir' argument
dat.lm -lm(c~d,
Works for me.
dat.lm -lm(c~d, data = dat, subset=d 0)
Please see if you have dat with d and c columns names.
On Sat, Oct 18, 2008 at 7:18 PM, Michael Just [EMAIL PROTECTED] wrote:
Henrique,
Thanks for the rapid response. I tried the following to no avail:
dat.lm -lm(c~d, dat=dat, subset= d
Am 18.10.2008 um 23:03 schrieb Michael Just:
Hello,
I was wondering if there was a way to only select cases my from data
frame that contained a negative value?
c-c(1,2,3,4,5,6,7,8,9,10)
d- c(-1,2,-3,-4,5,6,-7,8,-9,10)
f - cbind(c,d)
dat -data.frame(f)
dat.lm -lm(c~d)
If I wanted to only
Johannes,
Thanks for the response. However, ...
dat.neg - dat[dat$d 0, ]
Error in dat[dat$d 0, ] : incorrect number of dimensions
In addition: Warning message:
$ operator is deprecated for atomic vectors, returning NULL in: dat$d
Any other ideas?
Thanks,
Michael
On Sat, Oct 18, 2008 at 5:18
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