frozen_tour: A frozen tour path.

In tourr: Implement tour methods in pure R code

Description

A frozen tour path.

Usage

frozen_tour(d=2, frozen)

Arguments

d	target dimensionality
frozen	matrix of frozen variables, as described in freeze

Details

A frozen tour fixes some of the values of the orthonormal projection matrix and allows the others to vary freely according to any of the other tour methods. This frozen tour is a frozen grand tour. See frozen_guided_tour for a frozen guided tour.

Usually, you will not call this function directly, but will pass it to a method that works with tour paths like animate, save_history or render.

Examples

frozen <- matrix(NA, nrow = 4, ncol = 2)
frozen[3, ] <- .5
animate_xy(flea[, 1:4], frozen_tour(2, frozen))

## Not run: 
# Doesn't work - a bug?
frozen <- matrix(NA, nrow = 4, ncol = 2)
frozen[1, 1] <- 0.5
animate_xy(flea[, 1:4], frozen_tour(2, frozen))

# Doesn't work - a bug?
frozen <- matrix(NA, nrow = 4, ncol = 2)
frozen[, 1] <- 1/2
animate_xy(flea[, 1:4], frozen_tour(2, frozen))

# Doesn't work - a bug?
frozen[3, ] <- c(0, 1)
animate_xy(flea[, 1:4], frozen_tour(2, frozen))

# Doesn't move, which is correct - no free variables
frozen[4, ] <- .2
animate_xy(flea[, 1:4], frozen_tour(2, frozen))

# Doesn't work - a bug?
frozen <- matrix(NA, nrow = 4, ncol = 2)
frozen[, 1] <- 1/2
animate_xy(flea[, 1:4], frozen_tour(2, frozen))

## End(Not run)
# Two frozen variables in five 5.
frozen <- matrix(NA, nrow = 5, ncol = 2)
frozen[3, ] <- .5
frozen[4, ] <- c(-.2, .2)
animate_xy(flea[, 1:5], frozen_tour(2, frozen))

tourr documentation built on May 2, 2019, 5:28 p.m.