tidy.varFunc | R Documentation |
nlme
package.Returns a tibble with the following columns:
grouptype of varFunc, along with the right hand side of the formula
in parentheses e.g. "varExp(age | Sex)"
.
termterms included in the formula of the variance model, specifically
the names of the coefficients. If the value is fixed, it will be appended
with " ; fixed"
.
estimateestimated coefficient
estimatedThis column is only included if some parameters are fixed. TRUE if the parameter is estimated and FALSE if the parameter is fixed.
## S3 method for class 'varFunc' tidy(x, ...) ## S3 method for class 'varComb' tidy(x, ...)
x |
An object of class |
... |
Ignored |
If the varFunc
is uninitialized or has no parameters, the
function will return an empty tibble. Otherwise, it will return a tibble with
names described in the details section.
## Not run: if (require("nlme")) { ChickWeight_arbitrary_group <- datasets::ChickWeight ChickWeight_arbitrary_group$group_arb_n <- 1 + ( as.integer(ChickWeight_arbitrary_group$Chick) > median(as.integer(ChickWeight_arbitrary_group$Chick)) ) ChickWeight_arbitrary_group$group_arb <- c("low", "high")[ChickWeight_arbitrary_group$group_arb_n] fit_with_fixed <- lme( weight ~ Diet * Time, random = ~Time | Chick, data =ChickWeight_arbitrary_group, weights=varIdent(fixed=c("low"=5), form=~1|group_arb) ) # Show all parameters tidy(fit_with_fixed) # Exclude fixed parameters tidy(fit_with_fixed) %>% filter(across(any_of("estimated"), ~.x)) } ## End(Not run)
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