Computes linearized variable for the ratio estimator.
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Y |
Matrix of numerator variables. Any object convertible to |
Z |
Matrix of denominator variables. Any object convertible to |
weight |
Weight variable. One dimensional object convertible to one-column |
Dom |
Optional variables used to define population domains. If supplied, the linearized variables are computed for each domain. An object convertible to |
percentratio |
Positive integer value. All linearized variables are multiplied with percentratio value, by default - 1. |
The function returns the data.table
of the linearized variables for the ratio estimator.
Carl-Erik Sarndal, Bengt Swensson, Jan Wretman. Model Assisted Survey Sampling. Springer-Verlag, 1992, p.178.
domain
,
vardom
,
vardomh
,
vardcros
,
vardchanges
,
vardchangannual
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