Given a matrix, this function sets all elements of the matrix that are outside the so-called warping
window to NA. The warping window is a slanted band of constant width around the main diagonal
(i.e., Sakoe-Chiba-band), and it's size can be controlled with function arguments.
warpWindowSP(
iw,
jw,
iheight,
jheight,
iddate,
jddate,
profile.size,
profile.height,
window.size = 0.3,
window.size.abs = NA,
ddate.window.size = Inf,
...
)matrix of integers indicating their row number (cf., ?row)
matrix of integers indicating their column number (cf., ?col)
matrix of query height filled into the columns of the matrix
matrix of ref height filled into the rows of the matrix
same as iheight, but containing deposition date information (i.e., POSIXct data converted to numeric through matrix call!)
same as jheight, but containing deposition date information (i.e., POSIXct data converted to numeric through matrix call!)
number of layers in the longer one of the two profiles (scalar)
snow height of the deeper one of the two profiles (scalar)
percentage of profile.size or profile.height defining the size of the warping window (i.e., the most restrictive of the two will be applied)
Instead of a window.size percentage, an absolute value (in cm!) can be provided
number of days that exclude layers from the warping window if their deposition dates differ by more than these days
unused---but important to be able to provide other warping functions to distanceSPlayers
dtw::dtwWindowingFunctions