modified | R Documentation |
Just a simple to check how many times a survey (e.g. diary) has expired (i.e. user missed it). It defaults to checking the "expired" variable for this.
modified(survey, variable = "modified")
survey |
which survey are you asking about? |
variable |
which variable should be filled out, defaults to "modified" |
survey <- data.frame(modified = c(NA, "2016-05-29 10:11:00", NA))
modified(survey = survey)
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