tourr (version 0.5.1)

frozen_tour: A frozen tour path.

Description

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.

Usage

frozen_tour(d = 2, frozen)

Arguments

d

target dimensionality

frozen

matrix of frozen variables, as described in freeze

Details

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))

# 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))
# 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))