-#' @title dateIndexToInteger
+#' dateIndexToInteger
#'
-#' @description Transform a (potential) date index into an integer (relative to data)
+#' Transform a (potential) date index into an integer (relative to data)
#'
#' @param index Date (or integer) index
#' @param data Object of class \code{Data}
#' @export
dateIndexToInteger = function(index, data)
{
- index = index[1]
+ #works on integers too: trust input
if (is.numeric(index))
index = as.integer(index)
if (is.integer(index))
return (index)
+
if (inherits(index, "Date") || is.character(index))
{
- tryCatch(dt <- as.POSIXct(index), error=function(e) stop("Unrecognized index format"))
+ tryCatch(indexAsDate <- as.Date(index), error=function(e) stop("Unrecognized index format"))
#TODO: tz arg to difftime ?
- integerIndex <- round( (as.numeric( difftime(dt, data$getTime(1)) ))[1] ) + 1
- if (integerIndex > 0 && integerIndex <= data$getSize())
- {
- #WARNING: if series start at date >0h, result must be shifted
- date1 = as.POSIXlt(data$getTime(1)[1])
- date2 = as.POSIXlt(data$getTime(2)[1])
- shift = (date1$year==date2$year && date1$mon==date2$mon && date1$mday==date2$mday)
- return (integerIndex + ifelse(shift,1,0))
- }
+ integerIndex <- round( as.numeric(
+ difftime(indexAsDate, as.Date(data$getTime(1)[1])) ) ) + 1
+ if (integerIndex >= 1 && integerIndex <= data$getSize())
+ return (integerIndex)
stop("Date outside data range")
}
stop("Unrecognized index format")
}
-#' @title integerIndexToDate
+#' integerIndexToDate
#'
-#' @description Transform an integer index to date index (relative to data)
+#' Transform an integer index to date index (relative to data)
#'
#' @param index Date (or integer) index
#' @param data Object of class \code{Data}
#' @export
integerIndexToDate = function(index, data)
{
+ #works on dates too: trust input
+ if (is.character(index))
+ index = as.Date(index)
+ if (is(index,"Date"))
+ return (index)
+
index = index[1]
if (is.numeric(index))
index = as.integer(index)
if (!is.integer(index))
- stop("'index' should be an integer")
+ stop("'index' should be a date or integer")
as.Date( data$getTime(index)[1] )
}
-#' @title getSimilarDaysIndices
+#' getSimilarDaysIndices
#'
-#' @description Find similar days indices in the past
+#' Find similar days indices in the past.
#'
#' @param index Day index (numeric or date)
#' @param limit Maximum number of indices to return
-#' @param same_seaon Should the indices correspond to day in same season?
+#' @param same_season Should the indices correspond to day in same season?
#'
#' @export
getSimilarDaysIndices = function(index, limit, same_season)
return ( days[1:min(limit,length(days))] )
}
+
+#' getNoNA2
+#'
+#' Get indices in data of no-NA series followed by no-NA, within [first,last] range.
+#'
+#' @param data Object of class Data
+#' @param first First index (included)
+#' @param last Last index (included)
+#'
+#' @export
+getNoNA2 = function(data, first, last)
+{
+ (first:last)[ sapply(first:last, function(i)
+ !any( is.na(data$getCenteredSerie(i)) | is.na(data$getCenteredSerie(i+1)) )
+ ) ]
+}