Context Driven Exploratory Projection Pursuit
Functions and Data to support context epp.

Functions and Data to support Context Driven Exploratory Projection Pursuit.

c(person("Jari", "Oksanen", role=c("aut","cre"),
email="jhoksane@gmail.com"),
person(given = c("Gavin", "L."), family = "Simpson",
role = c("aut"),
email = "ucfagls@gmail.com",
comment = c(ORCID = "0000-0002-9084-8413")))
Read Condensed Cornell Ecology Program ('CEP') and legacy
'CANOCO' files into R data frames.
Jari Oksanen [aut, cre],
Gavin L. Simpson [aut] (<https://orcid.org/0000-0002-9084-8413>)

c(person("Jari", "Oksanen", role=c("aut","cre"),
email="jhoksane@gmail.com",
comment = c(ORCID="0000-0001-7102-9626")),
person(given = c("Gavin", "L."), family = "Simpson",
role = c("aut"),
email = "ucfagls@gmail.com",
comment = c(ORCID = "0000-0002-9084-8413")))

c(
person("Michael", "Sumner", email = "mdsumner@gmail.com", role = c("aut", "cre"),
comment = c(ORCID = "0000-0002-2471-7511")),
person("Miles", "McBain",  role = c("ctb"),
comment = c(ORCID = "0000-0003-2865-2548")),
person("Ben", "Raymond", role = c("ctb"), comment = "regex wizardry")
)
Download imagery tiles to a standard cache and load the data into raster objects.
Facilities for 'AWS' terrain <https://aws.amazon.com/public-datasets/terrain/> terrain and 'Mapbox'
<https://www.mapbox.com/> servers are provided.
slippymath (>= 0.3.0), curl, dplyr, fs (>= 1.3.0), glue,
rappdirs, tibble, stats, purrr, magrittr, rlang, sp, graphics,
raster, spex, jpeg, png, utils, reproj
Michael Sumner [aut, cre] (<https://orcid.org/0000-0002-2471-7511>),
Miles McBain [ctb] (<https://orcid.org/0000-0003-2865-2548>),
Ben Raymond [ctb] (regex wizardry)

Covariance Estimation Regularized by Nuclear Norm Penalties
An implementation of the covariance estimation method
proposed in Chi and Lange (2014), "Stable estimation of a covariance matrix guided by nuclear norm penalties,"
Computational Statistics and Data Analysis 80:117-128.

Access the Canadian Election Study Datasets
c(person(given = "Paul A.",
family = "Hodgetts",
role = c("aut", "cre"),
email = "hodgetts.paul@outlook.com"),
person(given = "Rohan",
family = "Alexander",
role = c("aut"),
email = "rohan.alexander@utoronto.ca",
comment = c(ORCID = "0000-0003-1279-0700")))
Makes accessing and loading the Canadian Election Study (<http://www.ces-eec.ca/>, <https://ces-eec.arts.ubc.ca/>, <https://search1.odesi.ca/#/>) surveys into the R workspace more efficient by
downloading a requested survey and loading it as a data object. This removes the need to locate, download, load,
and change working directories when working with the Canadian Election Study surveys.
dplyr, haven, readr, labelled, tidyr, utils
Paul A. Hodgetts [aut, cre],
Rohan Alexander [aut] (<https://orcid.org/0000-0003-1279-0700>)