| 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 matrix,
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.
Plotting tool: plaxes.
cares <- ca(logarray) newproj <- supplr(newrows, cares) # plot of first and second factors, and of supplementary rows: plot(cares$rproj[,1], cares$rproj[,2],type="n") text(cares$rproj[,1], cares$rproj[,2]) points(newproj[,1], newproj[,2]) # Place additional axes through x=0 and y=0: plaxes(cares$rproj[,1], cares$rproj[,2])