DecomposeR (version 1.0.6)

mode.in: Add / Remove / Bind modes in emd objects

Description

Add / Remove / Bind modes in emd objects

Usage

mode.in(emd, xy, mode = NA, adjust = TRUE, name = "Added")
mode.out(obj, keep = NULL, lose = NULL, adjust = F, reorder = F)
mode.bind(emd, mode = NA, xy = NULL, adjust = T, name = "bound")

Arguments

emd

emd-type object

xy

an Instrinsic Mode Function to add

mode, keep, lose

[mode.in] the position where to add the mode / [mode.out] the modes to keep or lose / [mode.bind] the modes to merge

adjust

whether to adapt the initial signal of an emd object ($xy in the emd object) when adding or removing a mode

name

the name of the new mode

obj

emd or pulse type object

reorder

whether to reinitialise the index of modes when suppressing one

Examples

set.seed(42)

n <- 600
t <- seq_len(n)

p1 <- 30
p2 <- 240

xy <- (1 + 0.6 * sin(t*2*pi/p2)) * sin(t*2*pi/p1)  + 2 * sin(t*2*pi/p2) +
  rnorm(n, sd = 0.5)

inter_dt <- round(runif(length(xy), min = 0.5, max = 1.5),1)

dt <- cumsum(inter_dt)

dec <- extricate(xy, dt, nimf = 7, sifting = 10,
                 repl = 10, comb = 10, factor_noise = 10,
                 speak = TRUE)

opar <- par('mfrow')

par(mfrow = c(2,1))

integrity(xy, dec)

ht  <- inst.pulse(dec, plot = FALSE)

plot_hist(x = 1/ht$f, breaks = 500, id = ht$mode,
          xlog = TRUE, text = TRUE, xlab = "Period",
          main = "Initial Decomposition")

bound <- mode.bind(dec, mode = c(6,7))

ht2  <- inst.pulse(bound, plot = FALSE)

plot_hist(x = 1/ht2$f, breaks = 500, id = ht2$mode,
          xlog = TRUE, text = TRUE, xlab = "Period",
          main = "Binding of modes 6 and 7")

par(mfrow = opar)

if (FALSE) {
plot_emd(bound, dir = tempdir(), adapt.axis = TRUE)}