added parameters to active percent documentation

NAMESPACE

@@ -68,6 +68,10 @@ import(ggplot2)
 import(patchwork)
 import(stats)
 importFrom(DT,renderDataTable)
+importFrom(lubridate,"%within%")
+importFrom(lubridate,days)
 importFrom(lubridate,hour)
+importFrom(lubridate,interval)
 importFrom(lubridate,minute)
 importFrom(magrittr,"%>%")
+importFrom(utils,tail)

R/active_percent.R

@@ -9,6 +9,9 @@
 #' @inheritParams plot_lasagna
 #'
 #' @param tz \strong{tz = "".} A character string specifying the time zone to be used. System-specific (see \code{\link{as.POSIXct}}), but " " is the current time zone, and "GMT" is UTC (Universal Time, Coordinated). Invalid values are most commonly treated as UTC, on some platforms with a warning.
+#' @param range_type "manual" or "automatic" depending on the desired time interval to be used
+#' @param ndays For "manual" calculation, the length of the time interval in days
+#' @param end_date For "manual" calculation, the end date of the desired time interval
 #'
 #' @details
 #'The function `active_percent` produces a tibble object with values equal to the
@@ -21,6 +24,9 @@
 #' @return A tibble object with five columns: subject id,
 #' corresponding active_percent value, duration of measurement period in days, start date, and end date.
 #'
+#' @importFrom lubridate days %within% interval
+#' @importFrom utils tail
+#'
 #' @export
 #'
 #' @author Pratik Patel, Irina Gaynanova