It samples data from a pandas dataframe using strata. These functions use proportionate stratification: n1 = (N1/N) * n where: - n1 is the sample size of stratum 1 - N1 is the population size of ...

Department of Computing and Informatics Saudi Electronics University, Riyadh, Saudi Arabia. Department of Statistics & Operations Research, Aligarh Muslim University, Aligarh, India. In sampling the ...

Suppose that the sample of students described in the previous section was actually selected using stratified random sampling. In stratified sampling, the study population is divided into ...

Functions in this package provide solution to classical problem in survey methodology - an optimum sample allocation in stratified sampling. In this context, the optimal allocation is in the classical ...

Many operations carried out by official statistical institutes use large-scale surveys obtained by stratified random sampling without replacement. Variables commonly examined in this type of surveys ...