Displaying 2 results from an estimated 2 matches for "baixomedio".
2008 Feb 20
2
factors ordered by mean
...n to the result to see
somethink like this:
> levels(pH)
[1] "baixo" "medio" "alto"
I try this to make a function that I need to get ordered levels by this mean
and after rename to make a automatic contrasts by comparing models.
> levels(pH)[1] <- "baixomedio"
> levels(pH)[2] <- "baixomedio"
> levels(pH)
[1] "baixomedio" "alto"
and after this a make a new model to be compared with a model with 3 levels
where "baixo" and "medio" is separated.
without ordered levels these command is wrong...
2008 Apr 20
3
Problem with object inside a function
Hi all,
I have a problem with an object inside a formula in a function that I make.
I create an object named qvartemp. This object is OK, look the levels:
> print(levels(qvartemp))
[1] "baixomedio" "alto"
Now I create a new object with a new formula:
> new.form <- as.formula(gsub(qvar,"qvartemp",as.expression(mma$formula)))
Look this new object:
> print(new.form)
Riqueza ~ Biomassa * qvartemp
Now here is the problem, I try to update an existing model (...