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A novel approach using hierarchical clustering to select industrial chemicals for environmental impact assessment

Stefan Rännar1, Patrik L Andersson

  • 1Department of Chemistry, Umea University, SE-90187 Umea, Sweden.

Journal of Chemical Information and Modeling
|January 7, 2010
PubMed

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Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...