Description Usage Arguments Value
Calculate summary statistics for time series variables For each combination of [id/measure] summary statistics are calculated over all periods
1 |
df |
(data frame) data set containing the time series variables |
idvar |
(character) name of the variable that uniquely identifies subjects in the data |
pfx |
(character) vector of prefix patterns for each time series variable |
sfx |
(character) pattern yielding period-specific values for each time series variable |
... |
(functions) functions to evaluate for each [id/measure] (built-in or user-defined) |
a data frame containing the idvar
and one column for each combination of [measure/stat]
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