Simple random sample in R
2017-08-24 本文已影响0人
腾子_Lony
# Simple random sample: states_srs
us_regions
states_srs <- us_regions %>%
sample_n(8)
# Count states by region
states_srs %>%
group_by(region) %>%
count()
# Simple random sample: states_srs
us_regions
states_srs <- us_regions %>%
sample_n(8)
# Count states by region
states_srs %>%
group_by(region) %>%
count()