Displaying 3 results from an estimated 3 matches for "annular".
Did you mean:
anular
2004 Apr 19
1
error message in mle function
I am getting an error message concerning the estimation of confidence
intervals when fitting a mixed model and don't know what the problem is,
or its solution.
Just to provide context: the model is describing the effects of age,
exp(age), harvest age, and climate variables on bighorn horn annular
length.
The data structure is repeated measures (between individuals, within
individuals over time).
Id is a random effect (there are between 3-11 horn measurements per ram,
one horn measurement per age, over the 25 year period in the dataset).
The mixed effect results is unable to prov...
2017 Oct 09
0
example of geom_contour() with function argument
library(mvtnorm) # you were misusing "require"... only use require if
you plan to
library(ggplot2) # test the return value and fail gracefully when the
package is missing
set.seed( 1234 )
xx <- data.frame( rmvt( 100, df = c( 13, 13 ) ) )
xx2 <- expand.grid( X1 = seq( -5, 5, 0.1 ) # all combinations... could
be used to fill a matrix
, X2 = seq( -5, 5, 0.1 )
2017 Oct 09
3
example of geom_contour() with function argument
Hi,
This is not a HW problem, sadly: I was last in a classroom 30 years ago,
and can no longer run off to the instructor :-(
I apologize but I cut and paste the wrong snippet earlier and made a typo
in doing so, but the result is the same with the more appropriate snippet.
require(mvtnorm)
require(ggplot2)
set.seed(1234)
xx <- data.frame(rmvt(100, df = c(13, 13)))
v <- ggplot(data = xx,