Compress replicate weight matrix
Many replicate weight matrices have redundant rows, such as when
weights are the same for all observations in a PSU. This function
produces a compressed form. Methods for as.matrix and
as.vector extract and expand the weights.
compressWeights(rw, ...) ## S3 method for class 'svyrep.design' compressWeights(rw,...) ## S3 method for class 'repweights_compressed' as.matrix(x,...) ## S3 method for class 'repweights_compressed' as.vector(x,...)
rw |
A set of replicate weights or a |
x |
A compressed set of replicate weights |
... |
For future expansion |
An object of class repweights_compressed or a
svyrep.design object with repweights element of class repweights_compressed
data(api) dclus1<-svydesign(id=~dnum, weights=~pw, data=apiclus1, fpc=~fpc) rclus1c<-as.svrepdesign(dclus1,compress=TRUE) rclus1<-as.svrepdesign(dclus1,compress=FALSE)
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