graphInd {FactoInvestigate}

Individuals factor map

Description

Realise the optimised individuals graph

Usage

graphInd(res, file = "", dim = 1:2, Iselec = "contrib", Icoef = 1, 
         figure.title = "Figure", graph = TRUE, cex = 0.7, 
		 codeGraphInd = NULL, options=NULL)

Arguments

res

an object of class PCA or MCA.

file

the file path where to write the description in Rmarkdown language. If not specified, the description is written in the console.

dim

a 2 dimensional numerical vector giving the factorial dimensions to use for the representation (by default the first plane).

Iselec

the individuals to select ; see the details section.

Icoef

a numerical coefficient to adjust the individuals selection rule ; see the details section.

figure.title

the text label to add before graph title.

graph

a boolean : if TRUE, graphs are plotted.

cex

an optional argument for the generic plot functions, used to adjust the size of the elements plotted.

codeGraphInd

a character string corresponding to the code to use for the individuals graph.

options

a character string that gives the output options fir the figures. If NULL, options="r, echo = FALSE, fig.align = 'center', fig.height = 3.5, fig.width = 5.5" for linux and Mac and options="r, echo = FALSE, fig.height = 3.5, fig.width = 5.5" for Windows

Details

The Iselec argument is used in order to select a part of the individuals that are drawn and described. For example, you can use either :
- Iselec = 1:5 and then the individuals numbered 1 to 5 are drawn.
- Iselec = c("name1","name5") then the individuals named name1 and name5 are drawn.
- Iselec = "contrib 10" then the 10 active or illustrative individuals that have the highest contribution on the 2 dimensions of the plane are drawn.
- Iselec = "contrib" then the optimal number of active or illustrative individuals (respectively the variables, the rows or the columns) that have the highest contribution on the 2 dimensions of the plane are drawn.
- Iselec = "cos2 5" then the 5 active or illustrative individuals that have the highest cos2 on the 2 dimensions of the plane are drawn.
- Iselec = "cos2 0.8" then the active or illustrative individuals that have a cos2 higher to 0.8 on the plane are drawn.
- Iselec = "cos2" then the optimal number of active or illustrative individuals that have the highest cos2 on the 2 dimensions of the plane are drawn.

The Icoef argument is used in order to adjust the selection of the individuals when based on Iselec = "contrib" or Iselec = "cos2". For example :
- if Icoef = 2, the threshold is 2 times higher, and thus 2 times more restrictive.
- if Icoef = 0.5, the threshold is 2 times lower, and thus 2 times less restrictive.

Author(s)

Simon Thuleau and Francois Husson

See Also

factoGraph, graphHab, graphCA, graphVar, graphSup

Examples

## Not run: 
require(FactoMineR)
data(decathlon)
res.pca = PCA(decathlon, quanti.sup = c(11:12), quali.sup = c(13), graph = FALSE)
graphInd(res.pca)

## End(Not run)