The nature of an analytical sample survey is discussed in general, and a sequential sampling scheme is proposed for certain situations. It is assumed that the subgroups of the population which are to ...

Methods for inferring the mode of inheritance of a trait from familial data are becoming widely used. It is therefore important to assess alternative procedures for the collection of the relevant data ...

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 ...

With the introduction of the WaveExpert 9000 and SDA 100G, LeCroy Corp joins Agilent (www.agilent.com) and Tektronix (www.tektronix.com) in offering scopes in a category that used to be called ...