This function computes a weighted sum for a matrix based on computed quantiles and user defined relative importance.
Usage
rg.wtdsums(x, ri, xcentr = NULL, xdisp = NULL)
Arguments
x
matrix
ri
vector for the relative importance, length(ri)=length(x[1,])
xcentr
the provided center
xdisp
the provided variance
Value
input
input parameter
centr
the center
disp
the variance
ri
relative importance
w
weights
a
normalized weights
ws
normalized weights times standardized x
Details
It is not necessary to provide the center and the variance. If those values are not supplied the center is the 50% quantile and the variance is calculated from the 25% and 75% quantile.
References
C. Reimann, P. Filzmoser, R.G. Garrett, and R. Dutter: Statistical Data Analysis
Explained. Applied Environmental Statistics with R. John Wiley and Sons, Chichester, 2008.