climatehealth (version 1.0.0)

mh_create_crossbasis: Create cross-basis matrix

Description

Creates a cross-basis matrix for each region

Usage

mh_create_crossbasis(
  df_list,
  var_fun = "bs",
  var_degree = 2,
  var_per = c(25, 50, 75),
  lag_fun = "strata",
  lag_breaks = 1,
  lag_days = 2
)

Value

A list of cross-basis matrices by region

Arguments

df_list

A list of dataframes containing daily timeseries data for a health outcome and climate variables which may be disaggregated by a particular region.

var_fun

Character. Exposure function for argvar (see dlnm::crossbasis). Defaults to 'bs'.

var_degree

Integer. Degree of the piecewise polynomial for argvar (see dlnm::crossbasis). Defaults to 2 (quadratic).

var_per

Vector. Internal knot positions for argvar (see dlnm::crossbasis). Defaults to c(25,50,75).

lag_fun

Character. Exposure function for arglag (see dlnm::crossbasis). Defaults to 'strata'.

lag_breaks

Integer. Internal cut-off point defining the strata for arglag (see dlnm::crossbasis). Defaults to 1.

lag_days

Integer. Maximum lag. Defaults to 2. (see dlnm::crossbasis).