getTrace: Tracing the index over an interpolated planned tour path.

In spinebil: Investigating New Projection Pursuit Index Functions

Description

Tracing is used to test if the index value varies smoothly over an interpolated tour path. The index value is calculated for the data d in each projection in the interpolated sequence. Note that all index functions must take the data in 2-d matrix format and return the index value.

Usage

getTrace(d, m, indexList, indexLabels)

Arguments

d	data
m	list of projection matrices for the planned tour
indexList	list of index functions to calculate for each entry
indexLabels	labels used in the output

Value

index values for each interpolation step

Examples

d <- spiralData(4, 100)
m <- list(basisMatrix(1,2,4), basisMatrix(3,4,4))
indexList <- list(tourr::holes(), tourr::cmass())
indexLabels <- c("holes", "cmass")
trace <- getTrace(d, m, indexList, indexLabels)
plotTrace(trace)

spinebil documentation built on Aug. 28, 2019, 5:04 p.m.