Find centralized, trusted content and collaborate around the technologies you use most.
Learn more about CollectivesStack Internal
Knowledge at work
Bring the best of human thought and AI automation together at your work.
Explore Stack InternalHow can I take a random sample (with or without replacement) but with given probabilities?
I am trying to extract a random sample of rows in iris data frame but with this condition of species: 80% versicolor and 20% virginica
> head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa 5 5.0 3.6 1.4 0.2 setosa 6 5.4 3.9 1.7 0.4 setosa Thank you for help.
How can I take a random sample (with or without replacement) but with given probabilities?
I am trying to extract a random sample of rows in iris data frame but with this condition of species: 80% versicolor and 20% virginica
> head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa 5 5.0 3.6 1.4 0.2 setosa 6 5.4 3.9 1.7 0.4 setosa Thank you for help.
How can I take a random sample (with or without replacement) but with given probabilities?
I am trying to extract a random sample of rows in iris data frame but with this condition of species: 80% versicolor and 20% virginica
> head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa 5 5.0 3.6 1.4 0.2 setosa 6 5.4 3.9 1.7 0.4 setosa How can I take a random sample (with or without replacement) but with given probabilities?
I am trying to extract a random sample of rows in iris data frame but with this condition of species: 80% versicolor and 20% virginica
> head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa 5 5.0 3.6 1.4 0.2 setosa 6 5.4 3.9 1.7 0.4 setosa Thank you for help.