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tourr (version 0.5.1)

Implement tour methods in pure R code

Description

Implements geodesic interpolation and basis generation functions that allow you to create new tour methods from R.

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Version

Install

install.packages('tourr')

Monthly Downloads

1,470

Version

0.5.1

License

MIT

Maintainer

Hadley Wickham

Last Published

March 20th, 2012

Functions in tourr (0.5.1)

Flea measurements

Flea beatle measurements
step_fraction

Step along an interpolated path by fraction of path length.
geodesic_path

Generate geodesic path.
dependence_tour

A dependence tour path.
search_geodesic

Search for most interesting projection along random geodesics.
basis_nearby

Generate nearby bases, e.g. for simulated annealing.
andrews

Compute Andrews' curves
display_dist

1d distribution tour path animation.
display_andrews

Andrews' curves tour path animation.
find_best_frozen_dir

Find most promising direction in frozen space.
proj_dist

Calculate the distance between two bases.
display_stars

Star glyph tour path animation.
pda_pp

PDA projection pursuit index.
animate

Animate a tour path.
display_scatmat

Scatterplot matrix tour path animation.
display_ggobi

Display tour path with ggobi
check_freezer_safe

Check matrix is a valid frozen matrix
basis_init

Generate initial basis.
display_image

Image tour path animation.
render

Render frames of animation to disk
display_depth

Display 3d projection with depth cues
find_path_peak

Find the most interesting projection along a geodesic.
planned_tour

A planned tour path.
find_best_dir

Find the most promising direction to travel in.
little_tour

A little tour path.
new_tour

Create a new tour.
is_orthonormal

Test if a numeric matrix is orthonormal.
Laser measurements

Turnable laser measurements from Bellcore
basis_random

Generate a random basis
Ozone measurements

Monthly ozone measurements over Central America
plot.path_curve

Plot history curves.
search_better_random

Search for better projection, with stochastic component.
normalise

Normalise a numeric matrix.
blank_plot

Set up a blank plot to display data projections
Places Ratings

Ratings of different locations across North America
find_platform

Find the platform Find the platform being used by the user
cmass

Central mass index.
display_stereo

Anaglpyh tour path animation.
paths_index

Compute index value for many histories.
new_geodesic_path

Generate a geodesic path between bases supplied by generator
center

Center a numeric vector by subtracting off its mean.
frozen_guided_tour

The frozen guided tour
Tropical Atmosphere Ocean

Tropical Atmosphere Ocean data
sphere

Sphere a matrix (or data frame) by transforming variables to principal components.
display_trails

Display tour path with trails
step_angle

Step along an interpolated path by angle in radians.
search_better

Search for a better projection near the current projection.
freeze

Freeze and thaw matrices
lda_pp

LDA projection pursuit index.
project3d

Stereographic projection
anaglyph

Draw anaglyphs with base graphics.
grand_tour

A grand tour path.
frozen_tour

A frozen tour path.
holes

Holes index.
display_pcp

Parallel coordinates tour path animation.
search_frozen_geodesic

Search for most interesting projection along frozen geodesics.
orthonormalise_by

Orthonnormalise one matrix by another.
interpolate

Interpolate geodesically between bases.
Rat CNS

Rat CNS Gene Expression
guided_tour

A guided tour path.
draw_tour_axes

Draw tour axes with base graphics
display_faces

Chernoff faces tour path animation.
Olive oil measurements

Olive oil samples from Italy
display_xy

Display tour path with a scatterplot
geodesic_info

Calculate information required to interpolate along a geodesic path between two frames.
path_index

Compute index values for a tour history.
find_frozen_path_peak

Find most highest peak along frozen geodesic.
save_history

Save tour history.
path_dist

Compute distance matrix from bases.
path_curves

Draw the path that the geodesics took.
plot.path_index

Plot history index with ggplot2.
local_tour

A local tour path.
bases_little

Generate bases for the little tour
xnul

A null function
rescale

Rescale a matrix or data frame
to_stop

Prints information on how to stop the output
orthonormalise

Orthonormalise using modified Gram-Schmidt process.