Z2Yhat | R Documentation |
Implementation of equation 21 in the paper.
Z2Yhat(z, x, digits = 9)
z |
Z as a matrix |
x |
X as a matrix |
digits |
When non-NULL, output values close to whole numbers will be rounded using
|
Generalized inverse is computed by ginv
.
In practise, the computations can be speeded up using reduced versions of X and Z. See ReduceX
.
Yhat as a matrix
Øyvind Langsrud
IpsoExtra
# Same data as in the paper
z <- RegSDCdata("sec7z")
x <- RegSDCdata("sec7x")
Z2Yhat(z, x)
# With y known, yHat can be computed in other ways
y <- RegSDCdata("sec7y") # Now z is t(x) %*% y
fitted(lm(y ~ x - 1))
IpsoExtra(y, x, FALSE, resScale = 0)
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