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Update extrema.R #8

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Update extrema.R #8

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6ec158b
Update extrema.R
chuckcoleman Dec 3, 2021
dff3c4c
Update extrema.R
chuckcoleman Dec 3, 2021
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4 changes: 3 additions & 1 deletion R/extrema.R
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@
#' artificial extrema added to the ends of the data as specified in the
#' original EEMD article [1]. In the case of flat regions at the extrema, the center point of the flat region
#' will be considered the extremal point [2].
#'
#' Added support for xts objects, Chuck Coleman, December 3, 2021.
#'
#' @export
#' @name extrema
Expand Down Expand Up @@ -38,7 +40,7 @@
#'
extrema <- function(input) {
output <- extremaR(input)
if (inherits(input, "ts")) {
if (inherits(input, c("ts","xts"))) {
output$x_max <- time(input)[output$x_max + 1]
output$x_min <- time(input)[output$x_min + 1]
}
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