CalculateAxisPath function

Calcule les trajectoires par axe pour un diagramme en radar (Calculate Axis Path)

Calculates x-y coordinates for a set of radial axes (one per variable being plotted in radar plot)

CalculateAxisPath(var.names, min, max)

Arguments

• var.names: list of variables to be plotted on radar plot
• min: MININUM value required for the plotted axes (same value will be applied to all axes)
• max: MAXIMUM value required for the plotted axes (same value will be applied to all axes)

Returns

a dataframe of the calculated axis paths

Examples

library(dplyr)
library(scales)
library(tibble)

mtcars_radar <- mtcars %>%
  as_tibble(rownames = "group") %>%
  mutate_at(vars(-group), rescale) %>%
  tail(4) %>%
  select(1:10)
plot.data <- as.data.frame(mtcars_radar)
if(!is.factor(plot.data[, 1])) {
  plot.data[, 1] <- as.factor(as.character(plot.data[, 1]))
  }
names(plot.data)[1] <- "group"
var.names <- colnames(plot.data)[-1]
grid.min = 0
grid.max = 1
centre.y = grid.min - ((1 / 9) * (grid.max - grid.min))
CalculateAxisPath(var.names, grid.min + abs(centre.y), grid.max + abs(centre.y))