ssampcalc {sampler} | R Documentation |
Determines sample size by strata using proportional allocation
ssampcalc(df, n, strata, over = 0)
df |
object containing sampling data frame (e.g. data) |
n |
sample size (integer) or object containing sample size |
strata |
variable in sampling data frame by which to stratify (e.g. region) |
over |
(optional) desired oversampling proportion (defaults to 0; takes value between 0 and 1 as input) |
Returns proportional sample size per strata (rounded up to nearest integer)
[1] Sampling Design & Analysis, S. Lohr, 1999, 4.4
ssampcalc(df=albania, n=544, strata=qarku, over=0.05)
size <- rsampcalc(nrow(albania), 3, 95, 0.5)
ssampcalc(albania, size, qarku)