Description Usage Arguments Details Value Note
Used by 'getDididXWave' to create a wide-format dataframe indicating survey completion for each of a selected set of waves, by SID.
1 | allNQQNotNA(pDF)
|
pDF |
The dataframe produced by 'getNQTVCs'. |
Used by 'getDidItXWave' to set values for the returned dataframe.
The long-form dataframe of time varying covariates (returned by getNQTVCs) with a column 'DidIt' added, which has the value one if any of the questions addressed below (lifetime substance use questions) were answered, 0 otherwise.
Internal function, NOT EXPORTED
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.