make_tapersetup_eigen: Create a taper setup for an Eigen sparse matrix

In coatless/pims_bigdata: Packaged spatial methods

Description

Generate the storage information we'll need to create a sparse eigen matrix

Usage

make_tapersetup_eigen(d, taprange)

Arguments

d	A matrix that is a symmetric distance matrix.
taprange	A double that is used to specify the gamma.

Details

This function is meant to be used to create SPAM matrices. The function formats data so that it can be used with a compressed sparse column format. Do not use output for Eigen matrices.

Value

A list

• n - row/col of matrix

• good.dists - distances that meet tapering requirements

• taps - results of applying the taper function

• ja - column index

• ia - row index

Examples

data(anom1962)
d = rdist_earth1(head(loc))
make_tapersetup_eigen(d, 20)

coatless/pims_bigdata documentation built on May 13, 2019, 8:46 p.m.