Scatter plot and additional variables with quality of representation contour lines
This function is useful to interpret the usual graphs $(x,y)$ with additional quantitative variables.
prefpls(donnee, var1 = 1, var2 = 2, firstvar = 3,
lastvar = ncol(donnee), levels = c(0.2,0.4,0.6,0.7,0.8,0.9,1),
asp = 1, nbchar = max(nchar(colnames(donnee))), title = NULL,
choix="var")donnee |
a data frame made up of quantitative variables |
var1 |
the position of the variable corresponding to the x-axis |
var2 |
the position of the variable corresponding to the y-axis |
firstvar |
the position of the first endogenous variable |
lastvar |
the position of the last endogenous variable (by default the last column of |
levels |
a list of the levels displayed in the graph of variables |
asp |
aspect ratio for the graph of the individuals |
nbchar |
the number of characters used for the labels of the variables |
title |
string corresponding to the title of the graph you draw (by default NULL and a title is chosen) |
choix |
the graph to plot ("ind" for the individuals, "var" for the variables) |
This function is very useful when there is a strong correlation between two variables x and y
A scatter plot of the invividuals
A graph with additional variables and the quality of representation contour lines.
Francois Husson Francois.Husson@agrocampus-ouest.fr
Husson, F. & Pages, J. (2005). Scatter plot and additional variables. Journal of applied statistics
data(decathlon) prefpls(decathlon[,c(11,12,1:10)])
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