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tourr (version 0.5.2)

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

0.5.2

License

MIT

Maintainer

Hadley Wickham

Last Published

June 19th, 2012

Functions in tourr (0.5.2)

Tropical Atmosphere Ocean

Tropical Atmosphere Ocean data

little_tour

A little tour path.

basis_init

Generate initial basis.

find_best_frozen_dir

Find most promising direction in frozen space.

guided_tour

A guided tour path.

Laser measurements

Turnable laser measurements from Bellcore

frozen_guided_tour

The frozen guided tour

path_dist

Compute distance matrix from bases.

normalise

Normalise a numeric matrix.

step_fraction

Step along an interpolated path by fraction of path length.

animate

Animate a tour path.

Ozone measurements

Monthly ozone measurements over Central America

cmass

Central mass index.

path_index

Compute index values for a tour history.

center

Center a numeric vector by subtracting off its mean.

Flea measurements

Flea beatle measurements

frozen_tour

A frozen tour path.

render

Render frames of animation to disk

andrews

Compute Andrews' curves

display_image

Image tour path animation.

display_depth

Display 3d projection with depth cues

display_faces

Chernoff faces tour path animation.

plot.path_curve

Plot history curves.

Olive oil measurements

Olive oil samples from Italy

grand_tour

A grand tour path.

display_pcp

Parallel coordinates tour path animation.

new_geodesic_path

Generate a geodesic path between bases supplied by generator

orthonormalise

Orthonormalise using modified Gram-Schmidt process.

paths_index

Compute index value for many histories.

path_curves

Draw the path that the geodesics took.

find_best_dir

Find the most promising direction to travel in.

bases_little

Generate bases for the little tour

display_dist

1d distribution tour path animation.

interpolate

Interpolate geodesically between bases.

geodesic_path

Generate geodesic path.

new_tour

Create a new tour.

display_stars

Star glyph tour path animation.

basis_nearby

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

proj_dist

Calculate the distance between two bases.

search_geodesic

Search for most interesting projection along random geodesics.

search_frozen_geodesic

Search for most interesting projection along frozen geodesics.

check_freezer_safe

Check matrix is a valid frozen matrix

planned_tour

A planned tour path.

display_xy

Display tour path with a scatterplot

lda_pp

LDA projection pursuit index.

local_tour

A local tour path.

geodesic_info

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

holes

Holes index.

display_andrews

Andrews' curves tour path animation.

plot.path_index

Plot history index with ggplot2.

to_stop

Prints information on how to stop the output

anaglyph

Draw anaglyphs with base graphics.

display_stereo

Anaglpyh tour path animation.

Rat CNS

Rat CNS Gene Expression

search_better

Search for a better projection near the current projection.

save_history

Save tour history.

project3d

Stereographic projection

step_angle

Step along an interpolated path by angle in radians.

Places Ratings

Ratings of different locations across North America

sphere

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

display_trails

Display tour path with trails

find_frozen_path_peak

Find most highest peak along frozen geodesic.

blank_plot

Set up a blank plot to display data projections

search_better_random

Search for better projection, with stochastic component.

find_platform

Find the platform Find the platform being used by the user

is_orthonormal

Test if a numeric matrix is orthonormal.

orthonormalise_by

Orthonnormalise one matrix by another.

pda_pp

PDA projection pursuit index.

basis_random

Generate a random basis

display_scatmat

Scatterplot matrix tour path animation.

display_ggobi

Display tour path with ggobi

draw_tour_axes

Draw tour axes with base graphics

rescale

Rescale a matrix or data frame

dependence_tour

A dependence tour path.

find_path_peak

Find the most interesting projection along a geodesic.

xnul

A null function

freeze

Freeze and thaw matrices