generate_projection: Generate a projection matrix

In jkbest2/spatq: Use spatially varying catchability to standardize fishery-dependent data

Generate a projection matrix

Description

Generate a projection matrix to locations in data_df, possible zeroing out some observations. Also group by year for a spatiotemporal effect.

Usage

generate_projection(
  mesh,
  data_df,
  vessel_idx = NULL,
  group = NULL,
  zero = FALSE
)

Arguments

mesh	INLA mesh to project
data_df	Data frame with s1 and s2 columns as coordinates to project to
vessel_idx	Vessel index to project to; others receive zero weight and are dropped
group	Year of observation for spatiotemporal effect
zero	Is this an empty projection matrix? (May be useful if e.g. the random effects parameters associated with it are map'd to zeros.)

Value

A sparse projection matrix

Author(s)

John Best

jkbest2/spatq documentation built on Sept. 22, 2022, 3:22 a.m.