Description Usage Arguments Details Value Author(s) References See Also Examples
Calculate the linearization variance of the trend coefficient with a Taylor series approximation. This is an internal function called from PWIGLS_ALL.
1 | LinearizationVar(Site, wij, xij, eij, varYij)
|
Site |
vector of Site names. |
wij |
vector of inclusion weights = Site-level design weight * Year-level panel weight. |
xij |
vector of shifted year variables (WYear) for trend estimation. |
eij |
vector of residuals from PWIGLS trend model. |
varYij |
vector of total variance estimates for yij, estimated from PWIGLS variance components estimates. |
The linearization variance is based on a Taylor series approximation. See Skinner (1989, p. 82-83) for more information.
Scalar variance estimate of the trend regression coefficient.
Leigh Ann Starcevich of Western EcoSystems Technology, Inc.
Skinner, C. J., D. Holt, and T. M. F. Smith. 1989. Analysis of Complex Surveys. New York: Wiley.
TrendNPS_Cont
, LinearizationVar_StRS
1 2 3 4 5 | ## Not run:
# ---- Read example data set.
TrendVar = LinearizationVar(Site,wij,xij,eij,varYij)
## End(Not run)
|
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