Dinnissen's Sampling Unit has expanded its ATEX certification to cover a wide range of environments. This means that the Sampling Unit is now suitable for hazardous areas with explosion risks, ...

Abstract: An effective way to obtain large areas of crop area information is the space sampling method constructed by combining remote sensing data with traditional sampling methods. However, the ...

Abstract: Sampling basic unit size is considered as a key factor in the process of formulating spatial sampling survey schemes. Reasonable sampling unit size plays an important role for reducing ...

This paper introduces the principle of PPS-based adaptive cluster sampling method and its modified HH estimator and HT estimator calculation method. It compares PPS-based adaptive cluster sampling ...

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 ...