Description Usage Arguments Value
View source: R/transform-tdc.R
For all covariates in the data set, this functions checks if the values of the covariate changes per ID or other grouping variable. Returns the names of variables that change over time.
1 |
data |
A data frame (potentially) containing time-dependent covariates. |
id_var |
A character indicating the grouping variable. For each covariate
it will be checked if their values change within a group specified by
|
A character vector containing names of variables that are not constant
in each group (id_var
).
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.