s.corcircle: Plot of the factorial maps of a correlation circle

In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

Plot of the factorial maps of a correlation circle

Description

performs the scatter diagram of a correlation circle.

Usage

s.corcircle(dfxy, xax = 1, yax = 2, label = row.names(df), 
    clabel = 1, grid = TRUE, sub = "", csub = 1, possub = "bottomleft", 
    cgrid = 0, fullcircle = TRUE, box = FALSE, add.plot = FALSE)

Arguments

dfxy	a data frame with two coordinates
xax	the column number for the x-axis
yax	the column number for the y-axis
label	a vector of strings of characters for the point labels
clabel	if not NULL, a character size for the labels, used with par("cex")*clabel
grid	a logical value indicating whether a grid in the background of the plot should be drawn
sub	a string of characters to be inserted as legend
csub	a character size for the legend, used with par("cex")*csub
possub	a string of characters indicating the sub-title position ("topleft", "topright", "bottomleft", "bottomright")
cgrid	a character size, parameter used with par("cex")*cgrid to indicate the mesh of the grid
fullcircle	a logical value indicating whether the complete circle sould be drawn
box	a logical value indcating whether a box should be drawn
add.plot	if TRUE uses the current graphics window

Value

The matched call.

Author(s)

Daniel Chessel

Examples

if(!adegraphicsLoaded()) {
  data (olympic)
  dudi1 <- dudi.pca(olympic$tab, scan = FALSE) # a normed PCA
  par(mfrow = c(2, 2))
  s.corcircle(dudi1$co, lab = names(olympic$tab))
  s.corcircle(dudi1$co, cgrid = 0, full = FALSE, clab = 0.8)
  s.corcircle(dudi1$co, lab = as.character(1:11), cgrid = 2, 
    full = FALSE, sub = "Correlation circle", csub = 2.5, 
    possub = "bottomleft", box = TRUE)
  s.arrow(dudi1$co, clab = 1)
  par(mfrow = c(1, 1))
}

ade4 documentation built on April 3, 2025, 8:22 p.m.