5.18.2. Stratified Sampling

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5.18.2. Stratified Sampling


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Function: samplingStratified

Property window:




Short description:


Stratified sampling on a modal variable.


Long Description:


Stratified sampling on a modal variable.


Here is an example: Let’s assume that:

…we want to randomly select 10% number1 of the input rows.

…we want to “stratify” on the column “education”: number2 i.e. we must ensure that the distribution of the variable “education” stays exactly the same inside our sample than inside our original population.


We’ll have: