Version 3.18 of the survey package is now percolating through CRAN.
Since the last announcement on this list, in February, the main additions are
- standard errors for survival curves (both Kaplan-Meier and Cox model)
- svyciprop() for confidence intervals on proportions, especially in small
samples or near 0 or 1.
- predictive margins by direct standardization, with marginpred()
- two-phase subsampling designs can now have arbitrary multistage designs at
each phase
- Rao-Scott-type likelihood ratio tests are now available for glms and the Cox
model
- a wide range of options for PPS designs without replacement
There is also experimental support for parallel processing using the
'multicore' package.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
tlum...@u.washington.edu University of Washington, Seattle
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