| supplr {multiv} | R Documentation |
Using the results of a correspondence analysis, project new rows into the factor space.
supplr(a, ca.res)
a |
data matrix to be projected. Must have same number of columns as matrix which was initially input to the correspondence analysis. |
ca.res |
the output of a correspondence analysis. The following components of this
object are used: evals, rproj and cproj.
|
a list containing the matrix proj,
projections of the rows of a on the correspondence analysis factors.
See function ca.
Correspondence analysis: ca.
Supplementary rows and columns: supplr, supplc. Initial data coding:
flou, logique. Other functions producing objects of class reddim:
pca, sammon. Other related functions: prcomp, cancor, cmdscale.
data(USArrests) USArrests <- as.matrix(USArrests) corr <- ca(USArrests[1:25,]) newproj <- supplc(USArrests[26:50,], corr) # plot of first and second factors, and of supplementary columns: plot(corr$cproj[,1], corr$cproj[,2],type="n") text(corr$cproj[,1], corr$cproj[,2]) points(newproj$proj[,1], newproj$proj[,2], col=2)