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Example data frame containing information on Primary Stage Units (PSUs) stratification.
data(beat.example) PSU_strat
The PSU_strat data frame contains a row for each Primary Stage Units (PSUs) with the following variables:
Identifier of the stratum (numeric)
Measure of size of the primary stage unit (numeric)
Identifier of the primary stage unit (numeric)
Note: the names of the variables must be the ones indicated above.
# NOT RUN { # Load example data data(beat.example) PSU_strat str(PSU_strat) # }
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