display_idx: Display a 1D linear aggregation index

In ggobi/tourr: Tour Methods for Multivariate Data Visualisation

Display a 1D linear aggregation index

Description

Animate a 1D tour path for data where individuals are ranked by a multivariate index. Allows one to examine the sensitivity of the ranking on the linear combination. Variables should be scaled to be between 0-1. This is only designed to work with a local tour, or a radial tour.

Usage

display_idx(
  center = FALSE,
  half_range = NULL,
  abb_vars = TRUE,
  col = "red",
  cex = 3,
  panel_height_ratio = c(3, 2),
  label_x_pos = 0.7,
  label = NULL,
  label_cex = 1,
  label_col = "grey80",
  add_ref_line = TRUE,
  axis_bar_col = "#000000",
  axis_bar_lwd = 3,
  axis_label_cex_upper = 1,
  axis_label_cex_lower = 1,
  axis_bar_label_cex = 1,
  axis_bar_label_col = "#000000",
  axis_var_cex = 1,
  axis_var_col = "#000000",
  palette = "Zissou 1",
  ...
)

animate_idx(data, tour_path = grand_tour(1), ...)

Arguments

center	should 1d projection be centered to have mean zero (default: TRUE). This pins the centre of distribution to the same place, and makes it easier to focus on the shape of the distribution.
half_range	half range to use when calculating limits of projected. If not set, defaults to maximum distance from origin to each row of data.
abb_vars	logical, whether to abbreviate the variable name, if long
col	the color used for points, can be a vector or hexcolors or a factor, default to "red".
cex	the size used for points, default to 0.5
panel_height_ratio	input to the height argument in [graphics::layout()] for the height of data and axis panel.
label_x_pos	the x position of text label, currently labels are positioned at a fixed x value for each observation
label	the text label, a vector
label_cex	the size for text labels
label_col	the color for text labels
add_ref_line	whether to add a horizontal reference line for each observation, logical default to TRUE
axis_bar_col	the color of the axis bar
axis_bar_lwd	the width of the axis bar
axis_label_cex_upper	the size of the axis label in the upper panel
axis_label_cex_lower	the size of the axis label in the lower panel
axis_bar_label_cex	the size of the axis label
axis_bar_label_col	the color of the axis label
axis_var_cex	the size of the variable name to the right of the axis panel
axis_var_col	the color of the variable name to the right of the axis panel
palette	name of color palette for point colour, used by hcl.colors, default "Zissou 1"
...	ignored
data	matrix, or data frame containing numeric columns
tour_path	tour path generator, defaults to 2d grand tour

Examples

data(places)
places_01 <- apply(places[1:10,1:9], 2, function(x) (x-min(x))/(max(x)-min(x)))
b <- matrix(rep(1/sqrt(9), 9), ncol=1)
places_init <- cbind(places_01, idx = as.vector(as.matrix(places_01) %*% b))
places_sorted <- places_init[order(places_init[,10]), 1:9]
animate_idx(places_sorted, tour_path = local_tour(b, angle=pi/8),
            label=as.character(places$stnum[1:9]),
            label_x_pos = 0)

ggobi/tourr documentation built on April 23, 2024, 11:11 p.m.