Tektronix has announced the DSA8200 digital serial analyzer sequential-sampling oscilloscope, new remote-sampling electrical modules, and enhanced IConnect software for serial-data-network analysis.
If you specify the option METHOD=PPS_SEQ, PROC SURVEYSELECT uses Chromy's method of sequential random sampling. Refer to Chromy (1979) and Williams and Chromy (1980). Chromy's method selects units ...
PROC SURVEYSELECT provides a variety of methods for selecting probability-based random samples. With probability sampling, each unit in the survey population has a known, positive probablity of ...
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